Installing easy_install with setup tools

Installing easy_install with setup tools - python

I'm trying to install easy_install using setup tools for the purpose of installing scrapy on Windows XP. On the setup tools page it says:
Once installation is complete, you will find an easy_install.exe
program in your Python Scripts subdirectory. Be sure to add this
directory to your PATH environment variable, if you haven't already
done so.
But when i install I only find an easy_install.exe.manifest file, and I'm not able to run this file. Sorry if this is a stupid question, but I'm new to this. I'm not quite sure what this sentence means either:
Be sure to add this directory to your PATH environment variable, if
you haven't already done so.

It means that you should have the path to the directory containing the file when you do
echo %PATH% (windows)
echo $PATH (linux/cygwin/...)
in the command line. If it does not appear, you should add it.
To do so check out the following links
git - setting path variable (linux)
How to set ANT_HOME with Windows? (windows)

Related

I do not know why I get the notification that pip is not on my computer [duplicate]

I'm running into a weird error when trying to install Django on my computer.
This is the sequence that I typed into my command line:
C:\Python34> python get-pip.py
Requirement already up-to-date: pip in c:\python34\lib\site-packages
Cleaning up...
C:\Python34> pip install Django
'pip' is not recognized as an internal or external command,
operable program or batch file.
C:\Python34> lib\site-packages\pip install Django
'lib\site-packages\pip' is not recognized as an internal or external command,
operable program or batch file.
What could be causing this?
This is what I get when I type in echo %PATH%:
C:\Python34>echo %PATH%
C:\Program Files\ImageMagick-6.8.8-Q16;C:\Program Files (x86)\Intel\iCLS Client\
;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\S
ystem32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\
Windows Live\Shared;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Progr
am Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Intel\Intel(R) Mana
gement Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine C
omponents\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components
\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\P
rogram Files (x86)\nodejs\;C:\Program Files (x86)\Heroku\bin;C:\Program Files (x
86)\git\cmd;C:\RailsInstaller\Ruby2.0.0\bin;C:\RailsInstaller\Git\cmd;C:\RailsIn
staller\Ruby1.9.3\bin;C:\Users\Javi\AppData\Roaming\npm

You need to add the path of your pip installation to your PATH system variable. By default, pip is installed to C:\Python34\Scripts\pip (pip now comes bundled with new versions of python), so the path "C:\Python34\Scripts" needs to be added to your PATH variable.
To check if it is already in your PATH variable, type echo %PATH% at the CMD prompt
To add the path of your pip installation to your PATH variable, you can use the Control Panel or the setx command. For example:
setx PATH "%PATH%;C:\Python34\Scripts"
Note:
According to the official documentation, "[v]ariables set with setx variables are available in future command windows only, not in the current command window". In particular, you will need to start a new cmd.exe instance after entering the above command in order to utilize the new environment variable.
Thanks to Scott Bartell for pointing this out.

For Windows, when you install a package, you type:
python -m pip install [packagename]

As of now, version 3.7.3 I had a little bit of an issue with getting the right system variable.
Try this:
Type start %appdata% in cmd.
After that file explorer should pop up in ../AppData/Roaming.
Go back one directory and navigate to Local/Programs/Python/Python37-32/Scripts.
NOTE: The version number may be different so if you copy and paste the above file path it could not work.
After you do this you now have the correct location of your downloaded Python. Copy your file path by selecting the whole directory in the address bar.
Once you do that click the start icon and navigate to the Control Panel → System and Security → System. Then click "Advanced System Settings" on the left side of the panel.
Once there, click Environment Variables on the bottom right and there will be two boxes, an upper and a lower box. In the upper box: Click on the 'Path' Variable and click Edit located on the right. Click New and paste your directory Path. It should look something like this:
Click OK three times, open a new window of cmd and type: pip. See if it works.

For me the command:
set PATH=%PATH%;C:\Python34\Scripts
worked immediately (try after echo %PATH% and you will see that your path has the value C:\Python34\Scripts).
Thanks to: Adding a directory to the PATH environment variable in Windows

Alternate way.
If you don't want to add the PATH as the previous well written answers pointed out,
but you want to execute pip as your command then you can do that with py -m as prefix.
Given that you have to do it again and again.
eg.
py -m <command>
as in
py -m pip install --upgrade pip setuptools
Also make sure to have pip and py installed

The only way that worked on my Windows 10 machine was as follows:
py -3 -m pip install xxxxx

Also, the long method - it was a last resort after trying all previous answers:
C:\python27\scripts\pip.exe install [package].whl
This after cd in directory where the wheel is located.

As per Python 3.6 Documentation
It is possible that pip does not get installed by default. One
potential fix is:
python -m ensurepip --default-pip

Control Panel -> add/remove programs -> Python -> Modify -> optional Features (you can click everything) then press next -> Check "Add python to environment variables" -> Install
And that should solve your path issues, so jump to command prompt and you can use pip now.

Go to control Panel >> Uninstall or change Program and double click on Python XXX to modify install. Make sure PIP component is checked and install.

I was having the same problem just now.
After adding the proper folder (C:\Python33\Scripts) to the path, I still could not get pip to run. All it took was running
pip.exe install -package- instead of
pip install -package-.

Try going to Windows PowerShell or cmd prompt and typing:
python -m pip install openpyxl

In latest version Python 3.6.2 and above, is available in
C:\Program Files (x86)\Python36-32\Scripts
You can add the path to our environment variable path as below
Make sure you close your command prompt or Git after setting up your path. Also should you open your command prompt in administrator mode. This is example for Windows 10.

Use
set Path = `%PATH%;C:\Python34\;C:\Python27\Scripts`
Source

Or if you are using PyCharm (2017-03-03) like me, just change directory in terminal and install:
cd C:\Users\{user}\PycharmProjects\test\venv\Scripts
pip install ..

Most frequently it is:
in cmd.exe write
python -m pip install --user [name of your module here without brackets]

Even I'm new to this, but pip install django worked for me.
The path should be set as where the script folder of the Python installation is, i.e.C:\Python34\Scripts.
I suppose it's because Django is a framework which is based on Python, and that's why this directory structure has to be maintained while installing.

I have just installed Python 3.6.2.
I got the path as
C:\Users\USERNAME\AppData\Local\Programs\Python\Python36-32\Scripts

In Windows, open cmd and find the location of PYTHON_HOME using where python. Now add this location to your environment variable PATH using:
set PATH=%PATH%;<PYTHON_HOME>\Scripts
Or refer to this.
In Linux, open a terminal and find the location of PYTHON_HOME using which python. Now add the PYTHON_HOME/Scripts to the PATH variable using:
PATH=$PATH:<PYTHON_HOME>\Scripts
export PATH

You can try pip3. Something like:
pip3 install pandas

I was facing the same issue. Run Windows PowerShell as Administrator. It resolved my issue.

None of these actually worked for me, but running
python -m pip install -U pip
and then adding the specified directory to the PATH as suggested got it working

In your Python folder path in Terminal, just type
py -m pip
in order to check the current version of your pip.
You will also see a list of commands, you can use...

I think from Python 2.7.9 and higher pip comes pre installed and it will be in your scripts folder.
So you have to add the "scripts" folder to the path. Mine is installed in C:\Python27\Scripts. Check yours to see what your path is so that you can alter the below accordingly. Then go to PowerShell, paste the below code in PowerShell and hit Enter key. After that, reboot and your issue will be resolved.
[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27\Scripts", "User")

In a Windows environment, just execute the below commands in a DOS shell.
path=%path%;D:\Program Files\python3.6.4\Scripts;
(new path=current path;path of the Python script folder)

I deleted the older version using the control panel and then installed the new version however the newer version was not reflecting pip even after adding the right paths in the environment variables. However, the thing that worked for me was deleting the folders of old python that were there in the local App folder even after uninstall. For me, the path was like below. Deleting this folder solved my issue
C:\Users\username\AppData\Local\Programs\Python38

'pip' is not recognized as an internal or external command
pip is a python module used to install packages. For your problem, there can be many reasons;
Restart CMD/Terminal
Environment variable is not set. pip is installed but environment variable is not set. Environment variable is a windows variable where pip path is saved, so it can be run at run time.
pip is not installed.
Restart CMD/Terminal
It is sometimes possible that you opened your command prompt or terminal before installing pip and now it just needs a restart to pick up the latest environment variables. It is worth trying just restarting your command prompt or terminal.
Environment Variable is Not Set
Open CMD and run this command to see the values set in the PATH environment variable.
echo %PATH%
This will echo the PATH environment variable like this;
You should check if your path exist in the echoed PATH list. For example, in my case, the path for pip.exe files is C:\Python310\Scripts. You can check this path yourself like this;
If you can find pip path and it does not exist the echoed PATH variable, then we need to add it. Copy the path like C:\Python310\Scripts.
Go to Start > This PC > Properties > Advance system settings >
Advanced > Environment Variables
As shown in the image above, Select Path, click Edit button and add the copied path. Restart the CMD and test pip command again.
pip is Not Installed
If pip is not installed, you can install it again by downloading latest python.exe setup from python.org website. Make sure you check mark the pip option as shown in the image below.
In the next step, check mark "Add Python to environment variables"

I had this same issue. You just need to go to your
C:\Python27\Scripts
and add it to environment variables. After path setting just run pip.exe file on C:\Python27\Scripts and then try pip in cmd. But if nothing happens try running all pip applications like pip2.7 and pip2.exe. And pip will work like a charm.

Small clarification: in "Windows 7 64 bit PC", after adding ...Python34\Scripts to the path variable, pip install pygame didn't work for me.
So I checked the "...Python34\Scripts" folder, it didn't have pip, but it had pip3 and pip3.4. So I ran pip3.4 install pygame .... .whl. It worked.
(Further open a command window in the same folder where you have the downloaded pygame...whl file.)

When installing SQL 2019 Python, there are known issues for PIP which require a fix (step 7)
https://learn.microsoft.com/en-us/sql/advanced-analytics/known-issues-for-sql-server-machine-learning-services?view=sql-server-ver15
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Workaround
Copy the following files:
libssl-1_1-x64.dll
libcrypto-1_1-x64.dll
from the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\Library\bin
to the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\DLLs
Then open a new DOS command shell prompt.

'pip' is not recognized as an internal or external command (i tried adding pip to my path) [duplicate]

I'm running into a weird error when trying to install Django on my computer.
This is the sequence that I typed into my command line:
C:\Python34> python get-pip.py
Requirement already up-to-date: pip in c:\python34\lib\site-packages
Cleaning up...
C:\Python34> pip install Django
'pip' is not recognized as an internal or external command,
operable program or batch file.
C:\Python34> lib\site-packages\pip install Django
'lib\site-packages\pip' is not recognized as an internal or external command,
operable program or batch file.
What could be causing this?
This is what I get when I type in echo %PATH%:
C:\Python34>echo %PATH%
C:\Program Files\ImageMagick-6.8.8-Q16;C:\Program Files (x86)\Intel\iCLS Client\
;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\S
ystem32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\
Windows Live\Shared;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Progr
am Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Intel\Intel(R) Mana
gement Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine C
omponents\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components
\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\P
rogram Files (x86)\nodejs\;C:\Program Files (x86)\Heroku\bin;C:\Program Files (x
86)\git\cmd;C:\RailsInstaller\Ruby2.0.0\bin;C:\RailsInstaller\Git\cmd;C:\RailsIn
staller\Ruby1.9.3\bin;C:\Users\Javi\AppData\Roaming\npm

You need to add the path of your pip installation to your PATH system variable. By default, pip is installed to C:\Python34\Scripts\pip (pip now comes bundled with new versions of python), so the path "C:\Python34\Scripts" needs to be added to your PATH variable.
To check if it is already in your PATH variable, type echo %PATH% at the CMD prompt
To add the path of your pip installation to your PATH variable, you can use the Control Panel or the setx command. For example:
setx PATH "%PATH%;C:\Python34\Scripts"
Note:
According to the official documentation, "[v]ariables set with setx variables are available in future command windows only, not in the current command window". In particular, you will need to start a new cmd.exe instance after entering the above command in order to utilize the new environment variable.
Thanks to Scott Bartell for pointing this out.

For Windows, when you install a package, you type:
python -m pip install [packagename]

As of now, version 3.7.3 I had a little bit of an issue with getting the right system variable.
Try this:
Type start %appdata% in cmd.
After that file explorer should pop up in ../AppData/Roaming.
Go back one directory and navigate to Local/Programs/Python/Python37-32/Scripts.
NOTE: The version number may be different so if you copy and paste the above file path it could not work.
After you do this you now have the correct location of your downloaded Python. Copy your file path by selecting the whole directory in the address bar.
Once you do that click the start icon and navigate to the Control Panel → System and Security → System. Then click "Advanced System Settings" on the left side of the panel.
Once there, click Environment Variables on the bottom right and there will be two boxes, an upper and a lower box. In the upper box: Click on the 'Path' Variable and click Edit located on the right. Click New and paste your directory Path. It should look something like this:
Click OK three times, open a new window of cmd and type: pip. See if it works.

For me the command:
set PATH=%PATH%;C:\Python34\Scripts
worked immediately (try after echo %PATH% and you will see that your path has the value C:\Python34\Scripts).
Thanks to: Adding a directory to the PATH environment variable in Windows

Alternate way.
If you don't want to add the PATH as the previous well written answers pointed out,
but you want to execute pip as your command then you can do that with py -m as prefix.
Given that you have to do it again and again.
eg.
py -m <command>
as in
py -m pip install --upgrade pip setuptools
Also make sure to have pip and py installed

The only way that worked on my Windows 10 machine was as follows:
py -3 -m pip install xxxxx

Also, the long method - it was a last resort after trying all previous answers:
C:\python27\scripts\pip.exe install [package].whl
This after cd in directory where the wheel is located.

As per Python 3.6 Documentation
It is possible that pip does not get installed by default. One
potential fix is:
python -m ensurepip --default-pip

Control Panel -> add/remove programs -> Python -> Modify -> optional Features (you can click everything) then press next -> Check "Add python to environment variables" -> Install
And that should solve your path issues, so jump to command prompt and you can use pip now.

Go to control Panel >> Uninstall or change Program and double click on Python XXX to modify install. Make sure PIP component is checked and install.

I was having the same problem just now.
After adding the proper folder (C:\Python33\Scripts) to the path, I still could not get pip to run. All it took was running
pip.exe install -package- instead of
pip install -package-.

Try going to Windows PowerShell or cmd prompt and typing:
python -m pip install openpyxl

In latest version Python 3.6.2 and above, is available in
C:\Program Files (x86)\Python36-32\Scripts
You can add the path to our environment variable path as below
Make sure you close your command prompt or Git after setting up your path. Also should you open your command prompt in administrator mode. This is example for Windows 10.

Use
set Path = `%PATH%;C:\Python34\;C:\Python27\Scripts`
Source

Or if you are using PyCharm (2017-03-03) like me, just change directory in terminal and install:
cd C:\Users\{user}\PycharmProjects\test\venv\Scripts
pip install ..

Most frequently it is:
in cmd.exe write
python -m pip install --user [name of your module here without brackets]

Even I'm new to this, but pip install django worked for me.
The path should be set as where the script folder of the Python installation is, i.e.C:\Python34\Scripts.
I suppose it's because Django is a framework which is based on Python, and that's why this directory structure has to be maintained while installing.

I have just installed Python 3.6.2.
I got the path as
C:\Users\USERNAME\AppData\Local\Programs\Python\Python36-32\Scripts

In Windows, open cmd and find the location of PYTHON_HOME using where python. Now add this location to your environment variable PATH using:
set PATH=%PATH%;<PYTHON_HOME>\Scripts
Or refer to this.
In Linux, open a terminal and find the location of PYTHON_HOME using which python. Now add the PYTHON_HOME/Scripts to the PATH variable using:
PATH=$PATH:<PYTHON_HOME>\Scripts
export PATH

You can try pip3. Something like:
pip3 install pandas

I was facing the same issue. Run Windows PowerShell as Administrator. It resolved my issue.

None of these actually worked for me, but running
python -m pip install -U pip
and then adding the specified directory to the PATH as suggested got it working

In your Python folder path in Terminal, just type
py -m pip
in order to check the current version of your pip.
You will also see a list of commands, you can use...

I think from Python 2.7.9 and higher pip comes pre installed and it will be in your scripts folder.
So you have to add the "scripts" folder to the path. Mine is installed in C:\Python27\Scripts. Check yours to see what your path is so that you can alter the below accordingly. Then go to PowerShell, paste the below code in PowerShell and hit Enter key. After that, reboot and your issue will be resolved.
[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27\Scripts", "User")

In a Windows environment, just execute the below commands in a DOS shell.
path=%path%;D:\Program Files\python3.6.4\Scripts;
(new path=current path;path of the Python script folder)

I deleted the older version using the control panel and then installed the new version however the newer version was not reflecting pip even after adding the right paths in the environment variables. However, the thing that worked for me was deleting the folders of old python that were there in the local App folder even after uninstall. For me, the path was like below. Deleting this folder solved my issue
C:\Users\username\AppData\Local\Programs\Python38

I had this same issue. You just need to go to your
C:\Python27\Scripts
and add it to environment variables. After path setting just run pip.exe file on C:\Python27\Scripts and then try pip in cmd. But if nothing happens try running all pip applications like pip2.7 and pip2.exe. And pip will work like a charm.

Small clarification: in "Windows 7 64 bit PC", after adding ...Python34\Scripts to the path variable, pip install pygame didn't work for me.
So I checked the "...Python34\Scripts" folder, it didn't have pip, but it had pip3 and pip3.4. So I ran pip3.4 install pygame .... .whl. It worked.
(Further open a command window in the same folder where you have the downloaded pygame...whl file.)

When installing SQL 2019 Python, there are known issues for PIP which require a fix (step 7)
https://learn.microsoft.com/en-us/sql/advanced-analytics/known-issues-for-sql-server-machine-learning-services?view=sql-server-ver15
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Workaround
Copy the following files:
libssl-1_1-x64.dll
libcrypto-1_1-x64.dll
from the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\Library\bin
to the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\DLLs
Then open a new DOS command shell prompt.

Python_d.exe and venv -- can't find "python_d.exe"

I'm using PyCharm and trying to set up a Flask project with a virtual environment. Whenever I select to do "New environment using Virtualenv" the base interpreter location seems to be right yet I continually get the error that there is no such file or directory "\python_d.exe" I don't think this is just a PyCharm error as I also get the same error when trying to do it from the terminal. I'm not quite sure why it's looking for python_d.exe instead of python.exe
I've already edited my PATH variable to be where my python executable is stored. And while installing Python (at the recommendation of other questions on this forum), selected to add to the PATH variable and also install for all users. I'm not sure where else to go on this, so any help is appreciated.
This is the error I get when I run the below command on the terminal.
> python -m venv C:\<path to where I want it to go>\venv
Error: [Errno 2] No such file or directory: 'C:\\<my specific path>\Python\\Python37-32\\lib\\venv\\scripts\\nt\\python_d.exe'

In the installation program of python seek if you have installed the debug file binaries.
python_d.exe is a file installed with that option activated.

Having trouple with Pip [duplicate]

I'm running into a weird error when trying to install Django on my computer.
This is the sequence that I typed into my command line:
C:\Python34> python get-pip.py
Requirement already up-to-date: pip in c:\python34\lib\site-packages
Cleaning up...
C:\Python34> pip install Django
'pip' is not recognized as an internal or external command,
operable program or batch file.
C:\Python34> lib\site-packages\pip install Django
'lib\site-packages\pip' is not recognized as an internal or external command,
operable program or batch file.
What could be causing this?
This is what I get when I type in echo %PATH%:
C:\Python34>echo %PATH%
C:\Program Files\ImageMagick-6.8.8-Q16;C:\Program Files (x86)\Intel\iCLS Client\
;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\S
ystem32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\
Windows Live\Shared;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Progr
am Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Intel\Intel(R) Mana
gement Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine C
omponents\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components
\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\P
rogram Files (x86)\nodejs\;C:\Program Files (x86)\Heroku\bin;C:\Program Files (x
86)\git\cmd;C:\RailsInstaller\Ruby2.0.0\bin;C:\RailsInstaller\Git\cmd;C:\RailsIn
staller\Ruby1.9.3\bin;C:\Users\Javi\AppData\Roaming\npm

You need to add the path of your pip installation to your PATH system variable. By default, pip is installed to C:\Python34\Scripts\pip (pip now comes bundled with new versions of python), so the path "C:\Python34\Scripts" needs to be added to your PATH variable.
To check if it is already in your PATH variable, type echo %PATH% at the CMD prompt
To add the path of your pip installation to your PATH variable, you can use the Control Panel or the setx command. For example:
setx PATH "%PATH%;C:\Python34\Scripts"
Note:
According to the official documentation, "[v]ariables set with setx variables are available in future command windows only, not in the current command window". In particular, you will need to start a new cmd.exe instance after entering the above command in order to utilize the new environment variable.
Thanks to Scott Bartell for pointing this out.

For Windows, when you install a package, you type:
python -m pip install [packagename]

As of now, version 3.7.3 I had a little bit of an issue with getting the right system variable.
Try this:
Type start %appdata% in cmd.
After that file explorer should pop up in ../AppData/Roaming.
Go back one directory and navigate to Local/Programs/Python/Python37-32/Scripts.
NOTE: The version number may be different so if you copy and paste the above file path it could not work.
After you do this you now have the correct location of your downloaded Python. Copy your file path by selecting the whole directory in the address bar.
Once you do that click the start icon and navigate to the Control Panel → System and Security → System. Then click "Advanced System Settings" on the left side of the panel.
Once there, click Environment Variables on the bottom right and there will be two boxes, an upper and a lower box. In the upper box: Click on the 'Path' Variable and click Edit located on the right. Click New and paste your directory Path. It should look something like this:
Click OK three times, open a new window of cmd and type: pip. See if it works.

For me the command:
set PATH=%PATH%;C:\Python34\Scripts
worked immediately (try after echo %PATH% and you will see that your path has the value C:\Python34\Scripts).
Thanks to: Adding a directory to the PATH environment variable in Windows

Alternate way.
If you don't want to add the PATH as the previous well written answers pointed out,
but you want to execute pip as your command then you can do that with py -m as prefix.
Given that you have to do it again and again.
eg.
py -m <command>
as in
py -m pip install --upgrade pip setuptools
Also make sure to have pip and py installed

The only way that worked on my Windows 10 machine was as follows:
py -3 -m pip install xxxxx

Also, the long method - it was a last resort after trying all previous answers:
C:\python27\scripts\pip.exe install [package].whl
This after cd in directory where the wheel is located.

As per Python 3.6 Documentation
It is possible that pip does not get installed by default. One
potential fix is:
python -m ensurepip --default-pip

Control Panel -> add/remove programs -> Python -> Modify -> optional Features (you can click everything) then press next -> Check "Add python to environment variables" -> Install
And that should solve your path issues, so jump to command prompt and you can use pip now.

Go to control Panel >> Uninstall or change Program and double click on Python XXX to modify install. Make sure PIP component is checked and install.

I was having the same problem just now.
After adding the proper folder (C:\Python33\Scripts) to the path, I still could not get pip to run. All it took was running
pip.exe install -package- instead of
pip install -package-.

Try going to Windows PowerShell or cmd prompt and typing:
python -m pip install openpyxl

In latest version Python 3.6.2 and above, is available in
C:\Program Files (x86)\Python36-32\Scripts
You can add the path to our environment variable path as below
Make sure you close your command prompt or Git after setting up your path. Also should you open your command prompt in administrator mode. This is example for Windows 10.

Use
set Path = `%PATH%;C:\Python34\;C:\Python27\Scripts`
Source

Or if you are using PyCharm (2017-03-03) like me, just change directory in terminal and install:
cd C:\Users\{user}\PycharmProjects\test\venv\Scripts
pip install ..

Most frequently it is:
in cmd.exe write
python -m pip install --user [name of your module here without brackets]

Even I'm new to this, but pip install django worked for me.
The path should be set as where the script folder of the Python installation is, i.e.C:\Python34\Scripts.
I suppose it's because Django is a framework which is based on Python, and that's why this directory structure has to be maintained while installing.

I have just installed Python 3.6.2.
I got the path as
C:\Users\USERNAME\AppData\Local\Programs\Python\Python36-32\Scripts

In Windows, open cmd and find the location of PYTHON_HOME using where python. Now add this location to your environment variable PATH using:
set PATH=%PATH%;<PYTHON_HOME>\Scripts
Or refer to this.
In Linux, open a terminal and find the location of PYTHON_HOME using which python. Now add the PYTHON_HOME/Scripts to the PATH variable using:
PATH=$PATH:<PYTHON_HOME>\Scripts
export PATH

You can try pip3. Something like:
pip3 install pandas

I was facing the same issue. Run Windows PowerShell as Administrator. It resolved my issue.

None of these actually worked for me, but running
python -m pip install -U pip
and then adding the specified directory to the PATH as suggested got it working

In your Python folder path in Terminal, just type
py -m pip
in order to check the current version of your pip.
You will also see a list of commands, you can use...

I think from Python 2.7.9 and higher pip comes pre installed and it will be in your scripts folder.
So you have to add the "scripts" folder to the path. Mine is installed in C:\Python27\Scripts. Check yours to see what your path is so that you can alter the below accordingly. Then go to PowerShell, paste the below code in PowerShell and hit Enter key. After that, reboot and your issue will be resolved.
[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27\Scripts", "User")

In a Windows environment, just execute the below commands in a DOS shell.
path=%path%;D:\Program Files\python3.6.4\Scripts;
(new path=current path;path of the Python script folder)

I deleted the older version using the control panel and then installed the new version however the newer version was not reflecting pip even after adding the right paths in the environment variables. However, the thing that worked for me was deleting the folders of old python that were there in the local App folder even after uninstall. For me, the path was like below. Deleting this folder solved my issue
C:\Users\username\AppData\Local\Programs\Python38

I had this same issue. You just need to go to your
C:\Python27\Scripts
and add it to environment variables. After path setting just run pip.exe file on C:\Python27\Scripts and then try pip in cmd. But if nothing happens try running all pip applications like pip2.7 and pip2.exe. And pip will work like a charm.

Small clarification: in "Windows 7 64 bit PC", after adding ...Python34\Scripts to the path variable, pip install pygame didn't work for me.
So I checked the "...Python34\Scripts" folder, it didn't have pip, but it had pip3 and pip3.4. So I ran pip3.4 install pygame .... .whl. It worked.
(Further open a command window in the same folder where you have the downloaded pygame...whl file.)

When installing SQL 2019 Python, there are known issues for PIP which require a fix (step 7)
https://learn.microsoft.com/en-us/sql/advanced-analytics/known-issues-for-sql-server-machine-learning-services?view=sql-server-ver15
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Workaround
Copy the following files:
libssl-1_1-x64.dll
libcrypto-1_1-x64.dll
from the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\Library\bin
to the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\DLLs
Then open a new DOS command shell prompt.

Python 3, sys.path doesn't work, how to permenantly append a path? [duplicate]

Whenever I use sys.path.append, the new directory will be added. However, once I close python, the list will revert to the previous (default?) values. How do I permanently add a directory to PYTHONPATH?

If you're using bash (on a Mac or GNU/Linux distro), add this to your ~/.bashrc
export PYTHONPATH="${PYTHONPATH}:/my/other/path"

You need to add your new directory to the environment variable PYTHONPATH, separated by a colon from previous contents thereof. In any form of Unix, you can do that in a startup script appropriate to whatever shell you're using (.profile or whatever, depending on your favorite shell) with a command which, again, depends on the shell in question; in Windows, you can do it through the system GUI for the purpose.
superuser.com may be a better place to ask further, i.e. for more details if you need specifics about how to enrich an environment variable in your chosen platform and shell, since it's not really a programming question per se.

Instead of manipulating PYTHONPATH you can also create a path configuration file. First find out in which directory Python searches for this information:
python -m site --user-site
For some reason this doesn't seem to work in Python 2.7. There you can use:
python -c 'import site; site._script()' --user-site
Then create a .pth file in that directory containing the path you want to add (create the directory if it doesn't exist).
For example:
# find directory
SITEDIR=$(python -m site --user-site)
# create if it doesn't exist
mkdir -p "$SITEDIR"
# create new .pth file with our path
echo "$HOME/foo/bar" > "$SITEDIR/somelib.pth"

This works on Windows
On Windows, with Python 2.7 go to the Python setup folder.
Open Lib/site-packages.
Add an example.pth empty file to this folder.
Add the required path to the file, one per each line.
Then you'll be able to see all modules within those paths from your scripts.

In case anyone is still confused - if you are on a Mac, do the following:
Open up Terminal
Type open .bash_profile
In the text file that pops up, add this line at the end:
export PYTHONPATH=$PYTHONPATH:foo/bar
Save the file, restart the Terminal, and you're done

You could add the path via your pythonrc file, which defaults to ~/.pythonrc on linux. ie.
import sys
sys.path.append('/path/to/dir')
You could also set the PYTHONPATH environment variable, in a global rc file, such ~/.profile on mac or linux, or via Control Panel -> System -> Advanced tab -> Environment Variables on windows.

To give a bit more explanation, Python will automatically construct its search paths (as mentioned above and here) using the site.py script (typically located in sys.prefix + lib/python<version>/site-packages as well as lib/site-python). One can obtain the value of sys.prefix:
python -c 'import sys; print(sys.prefix)'
The site.py script then adds a number of directories, dependent upon the platform, such as /usr/{lib,share}/python<version>/dist-packages, /usr/local/lib/python<version>/dist-packages to the search path and also searches these paths for <package>.pth config files which contain specific additional search paths. For example easy-install maintains its collection of installed packages which are added to a system specific file e.g on Ubuntu it's /usr/local/lib/python2.7/dist-packages/easy-install.pth. On a typical system there are a bunch of these .pth files around which can explain some unexpected paths in sys.path:
python -c 'import sys; print(sys.path)'
So one can create a .pth file and put in any of these directories (including the sitedir as mentioned above). This seems to be the way most packages get added to the sys.path as opposed to using the PYTHONPATH.
Note: On OSX there's a special additional search path added by site.py for 'framework builds' (but seems to work for normal command line use of python): /Library/Python/<version>/site-packages (e.g. for Python2.7: /Library/Python/2.7/site-packages/) which is where 3rd party packages are supposed to be installed (see the README in that dir). So one can add a path configuration file in there containing additional search paths e.g. create a file called /Library/Python/2.7/site-packages/pip-usr-local.pth which contains /usr/local/lib/python2.7/site-packages/ and then the system python will add that search path.

On MacOS, Instead of giving path to a specific library. Giving full path to the root project folder in
~/.bash_profile
made my day, for example:
export PYTHONPATH="${PYTHONPATH}:/Users/<myuser>/project_root_folder_path"
after this do:
source ~/.bash_profile

On linux you can create a symbolic link from your package to a directory of the PYTHONPATH without having to deal with the environment variables. Something like:
ln -s /your/path /usr/lib/pymodules/python2.7/

For me it worked when I changed the .bash_profile file. Just changing .bashrc file worked only till I restarted the shell.
For python 2.7 it should look like:
export PYTHONPATH="$PYTHONPATH:/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python"
at the end of the .bash_profile file.

Adding export PYTHONPATH="${PYTHONPATH}:/my/other/path" to the ~/.bashrc might not work if PYTHONPATH does not currently exist (because of the :).
export PYTHONPATH="/my/other/path1"
export PYTHONPATH="${PYTHONPATH}:/my/other/path2"
Adding the above to my ~/.bashrc did the trick for me on Ubuntu 16.04

This is an update to this thread which has some old answers.
For those using MAC-OS Catalina or some newer (>= 10.15), it was introduced a new Terminal named zsh (a substitute to the old bash).
I had some problems with the answers above due to this change, and I somewhat did a workaround by creating the file ~/.zshrc and pasting the file directory to the $PATH and $PYTHONPATH
So, first I did:
nano ~/.zshrc
When the editor opened I pasted the following content:
export PATH="${PATH}:/Users/caio.hc.oliveira/Library/Python/3.7/bin"
export PYTHONPATH="${PYTHONPATH}:/Users/caio.hc.oliveira/Library/Python/3.7/bin"
saved it, and restarted the terminal.
IMPORTANT: The path above is set to my computer's path, you would have to adapt it to your python.

The script below works on all platforms as it's pure Python. It makes use of the pathlib Path, documented here https://docs.python.org/3/library/pathlib.html, to make it work cross-platform. You run it once, restart the kernel and that's it. Inspired by https://medium.com/#arnaud.bertrand/modifying-python-s-search-path-with-pth-files-2a41a4143574. In order to run it it requires administrator privileges since you modify some system files.
from pathlib import Path
to_add=Path(path_of_directory_to_add)
from sys import path
if str(to_add) not in path:
minLen=999999
for index,directory in enumerate(path):
if 'site-packages' in directory and len(directory)<=minLen:
minLen=len(directory)
stpi=index
pathSitePckgs=Path(path[stpi])
with open(str(pathSitePckgs/'current_machine_paths.pth'),'w') as pth_file:
pth_file.write(str(to_add))

Just to add on awesomo's answer, you can also add that line into your ~/.bash_profile or ~/.profile

The add a new path to PYTHONPATH is doing in manually by:
adding the path to your ~/.bashrc profile, in terminal by:
vim ~/.bashrc
paste the following to your profile
export PYTHONPATH="${PYTHONPATH}:/User/johndoe/pythonModule"
then, make sure to source your bashrc profile when ever you run your code in terminal:
source ~/.bashrc
Hope this helps.

I added permanently in Windows Vista, Python 3.5
System > Control Panel > Advanced system settings > Advanced (tap) Environment Variables > System variables > (if you don't see PYTHONPATH in Variable column) (click) New > Variable name: PYTHONPATH > Variable value:
Please, write the directory in the Variable value. It is details of Blue Peppers' answer.

Fix Python Path issues when you switch from bash to zsh
I ran into Python Path problems when I switched to zsh from bash.
The solution was simple, but I failed to notice.
Pip was showing me, that the scripts blah blah or package blah blah is installed in ~/.local/bin which is not in path.
After reading some solutions to this question, I opened my .zshrc to find that the solution already existed.
I had to simply uncomment a line:
Take a look

I found a solution to do this in a anaconda environment here: https://datacomy.com/python/anaconda/add_folder_to_path/
Just:
conda develop /your_path

In Python 3.6.4 you can persist sys.path across python sessions like this:
import sys
import os
print(str(sys.path))
dir_path = os.path.dirname(os.path.realpath(__file__))
print(f"current working dir: {dir_path}")
root_dir = dir_path.replace("/util", '', 1)
print(f"root dir: {root_dir}")
sys.path.insert(0, root_dir)
print(str(sys.path))
I strongly suggest you use virtualenv and virtualenvwrapper otherwise you will clutter your path

Inspired by andrei-deusteanu answer, here is my version. This allows you to create a number of additional paths in your site-packages directory.
import os
# Add paths here. Then Run this block of code once and restart kernel. Paths should now be set.
paths_of_directories_to_add = [r'C:\GIT\project1', r'C:\GIT\project2', r'C:\GIT\project3']
# Find your site-packages directory
pathSitePckgs = os.path.join(os.path.dirname(os.__file__), 'site-packages')
# Write a .pth file in your site-packages directory
pthFile = os.path.join(pathSitePckgs,'current_machine_paths.pth')
with open(pthFile,'w') as pth_file:
pth_file.write('\n'.join(paths_of_directories_to_add))
print(pthFile)

After multiple bashing into wall. Finally resolved, in my CentOS 8 the pip3 was old, which was showing error to install the recent packages.
Now, I had downloaded the Python source package, which is Python-3.10.4 and installed the usual way, however the post-installation check generated errors in bash.
And I could not remove the existing Python, because that would break the CentOS desktop features.
Solution:
For building
./configure //don't not add --prefix=/usr, which you need to set proper care
make -j8
sudo make install
Now, as you have multiple Python installed, you can set alias python=python3
And for setting PYTHONPATH
export PYTHONPATH="/usr/local/bin/python3.10:/usr/local/lib/python3.10/lib-dynload:/usr/local/lib/python3.10/site-packages"
Don't add PYTHONHOME

For those who (like me) don't want to get too deeply involved in Python file management (which seems hopelessly overcomplicated), creating a .pth file works perfectly on my Windows 11 laptop (I'm using Visual Studio Code in Windows). So just go to the folder for your virtual environment site packages - there's mine:
Create a text file with a .pth extension - I called mine wheal.pth:
Add paths to it:
The best thing about this in VS Code is that import statements recognise this path (I had to exit VS Code and go back in), so now more typing # type: ignore to suppress linting warning messages!

on Mac :
user#terminal$ env PYTHONPATH=module_path python3
>>> import sys
>>> sys.path
['module_path', 'plus_other_python3_paths',...]

Shortest path between A <-> B is a straight line;
import sys
if not 'NEW_PATH' in sys.path:
sys.path += ['NEW_PATH']

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