Getting erros trying to install a new package for Python - python

I have spent hours trying to install a new package for Python (XlsxWriter) but Ican't figure out how to do it. (I am using Python 2.7.10)
I download the two files from here and copied them into my main Python directory:
https://pypi.python.org/pypi/XlsxWriter
In their documentation they recommended using
'pip install XlsxWriter' to install.
I followed the instructions to install pip from here (downloading file and running 'python get-pip.py'):
https://pip.pypa.io/en/latest/installing/#install-pip
That seemed to work but when I type 'pip install XlsxWriter' it still says "'pip' is not recognized as an internal or external command" e.t.c.
Also, as I had downloaded a tarball, I tried the line tar -zxvf XlsxWriter-0.7.7.tar.gz but it just says tar isn't a recognised command again.
If I load python in the command prompt by just typing 'python' and then try the above commands it just says invalid syntax
Where am I going wrong?
Sorry this is so simple but I have no one to ask in real life and have followed the instructions to install python packages in a few places but still can't get it to work.

try python -m pip install XlsxWriter
invoke it as a python module... Your path may not be properly set to just recognize pip
Add your python installation bin folder to your environment path

The problem is your pip installation. You have make pip work first:
http://pip.readthedocs.org/en/stable/installing/
Then you can do pip install XlsxWriter without downloading the package first.
Alternatively you can unpack the archive (tar -xvf XlsxWriter-0.7.7.tar.gz on Linux/Mac) and then do python setup.py install.

Related

What is the difference between installing a package in my Windows CMD and in VS Code terminal?

I am doing this project where i need to install a package called Twint.
I want to install this package and use it's commands in my VS Code.
What happends when i for example type this in my Windows CMD?
pip3 install --user --upgrade git+https://github.com/twintproject/twint.git#origin/master#egg=twint
Because i can't type this in my VS code terminal, where i usually install packages with pip.
It will return an error that says ERROR: Cannot find command 'git' - do you have 'git' installed and in your PATH?''
Now if i run this in my Windows Command it seems that i can't directly import the package in VS code?
Can anyone help me out with this confusion, where does the files get stored and how do i create good habbits around installing packages?
Hope someone understands what im struggeling with here.
Best
It is often the case that computers have more than one version of python installed and that editors like VS code use a different version than pip uses on the command line. pip installs packages where the version of python it is linked to expects them to be, but VScode doesn't know to look there.
It sounds like you have git installed where pip installs things, so you can upgrade from the command line without issue, but there's no installation of git where VScode is looking, so there's nothing to upgrade.
You either need to find where pip installs things and add it to the $PATH VScode uses, or try running a variation of python -m pip install --user git (specifying a specific url, or other things, as needed) from within VScode, which will ensure the package gets installed in a place that VScode looks for packages.
Download and Install git in your windows from here:
https://git-scm.com/download/win
Then add its installation bin path to your windows's environment path. Then you will find the git command at the command prompt globally.
This may solve you problem.

Issue installing pip and pandas

I am trying to install Pandas with Pip and am running into some strange issues. Command prompt reported that pip is an unrecognized command. I thought that was strange, but decided to definitively remedy that by installing pip with the following commands:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py
I received the report that an existing version of pip was found, uninstalled, and the new version was installed. I then proceeded to run
pip install pandas
And I was informed that 'pip' is not recognized as an internal or external command, operable program or batch file.
I then added to the path environment and the issue is still persisting. It's worth noting that I installed Python 3.6 by installing Anaconda. What am I missing here?
The pip command is not found because it's not in your path.
You should add the following to your PATH environment variable:
;%PYTHON_HOME%\;%PYTHON_HOME%\Scripts\
A simple Google search should help you find how to change environment variables for you version of Windows.
For example, see this page from the Java documentation.
Try the following
C:\Users\Username>cd C:\Python27\Scripts
C:\Python27\Scripts>pip freeze
If you're using a different Python version, replace Python27, with your version of Python.
On windows you can use !pip install pandas in your Python program without having to open the windows/anaconda prompt.
But as others said, pip is not in your active directory and you would have to open the anaconda prompt or go to the library where pip is installed

Using pip Python 2.7 - Pipe not recognized as an internal or external command

I am trying to install Pillow-2.7.0-cp27-none-win32.whl
I read it is necessary to use the pip to install such file extension.
So I downloaded python 2.7 which already comes with pip installed.
However when I try to execute the following command:
pip install Pillow-2.7.0-cp27-none-win32.whl
command prompt returns:
pip is not recognized as an internal or external command
EDIT
I tried the following solution:
'pip' is not recognized as an internal or external command
But the message result is the same
You need to add the directory containing pip.exe to your PATH. It is usually found in C:\<PythonInstallDir>\Scripts, probably C:\Python27\Scripts unless the installation method has changed recently. The method of editing your PATH varies slightly amongst Windows versions, so Google it with your particular version if you don't already know how to do it.
You can try using py -m pip install pillow in the Command Prompt/PowerShell

pip command is not being recognized

I am installing python and Django on my shared host server. I have followed the guide located here to install python and pip
http://flailingmonkey.com/install-django-justhost/
As I've encountered the problem of python never using 3.4.2 I've followed a different guide to install python 3.4.2 which is here
http://joemaller.com/1717/building-python-on-shared-hosting/
After I installed python, I went back to follow the first guide to instlall setup tools and pip.
I've ran all the commands it said and when I look inside python3.4.2/bin folder I see pip pip3 and pip3.4 files there so that tells me that pip was installed. However whenever I try to use pip instlal Django it says -bash: pip: command not found. I'm just wondering if I am missing a step somewhere?
The path is set incorrectly so adding so add the following to .bashrc:
export PATH=$HOME/opt/python3.4.2/bin:$PATH
And then source ~/.bashrc.
You could try to write this in consol to install pip
easy_install pip

How do I install a Python package with a .whl file?

I'm having trouble installing a Python package on my Windows machine, and would like to install it with Christoph Gohlke's Window binaries. (Which, to my experience, alleviated much of the fuss for many other package installations). However, only .whl files are available.
http://www.lfd.uci.edu/~gohlke/pythonlibs/#jpype
But how do I install .whl files?
Notes
I've found documents on wheel, but they don't seem so staightforward in explaining how to install .whl files.
This question is a duplicate with this question, which wasn't directly answered.
I just used the following which was quite simple. First open a console then cd to where you've downloaded your file like some-package.whl and use
pip install some-package.whl
Note: if pip.exe is not recognized, you may find it in the "Scripts" directory from where python has been installed. If pip is not installed, this page can help:
How do I install pip on Windows?
Note: for clarification
If you copy the *.whl file to your local drive (ex. C:\some-dir\some-file.whl) use the following command line parameters --
pip install C:/some-dir/some-file.whl
First, make sure you have updated pip to enable wheel support:
pip install --upgrade pip
Then, to install from wheel, give it the directory where the wheel is downloaded. For example, to install package_name.whl:
pip install --use-wheel --no-index --find-links=/where/its/downloaded package_name
There are several file versions on the great Christoph Gohlke's site.
Something I have found important when installing wheels from this site is to first run this from the Python console:
import pip
print(pip.pep425tags.get_supported())
so that you know which version you should install for your computer. Picking the wrong version may fail the installing of the package (especially if you don't use the right CPython tag, for example, cp27).
I am in the same boat as the OP.
Using a Windows command prompt, from directory:
C:\Python34\Scripts>
pip install wheel
seemed to work.
Changing directory to where the whl was located, it just tells me 'pip is not recognized'. Going back to C:\Python34\Scripts>, then using the full command above to provide the 'where/its/downloaded' location, it says Requirement 'scikit_image-...-win32.whl' looks like a filename, but the filename does not exist.
So I dropped a copy of the .whl in Python34/Scripts, ran the exact same command over again (with the --find-links= still going to the other folder), and this time it worked.
There's a slight difference between accessing the .whl file in python2 and python3. In python3, you need to install wheel first and then you can access .whl files.
Python3
pip install package.whl
OR
pip install wheel
And then by using wheel
wheel unpack some-package.whl
Python2
pip install some-package.whl
You have to run pip.exe from the command prompt on my computer.
I type C:/Python27/Scripts/pip2.exe install numpy
On Windows you can't just upgrade using pip install --upgrade pip, because the pip.exe is in use and there would be an error replacing it. Instead, you should upgrade pip like this:
easy_install --upgrade pip
Then check the pip version:
pip --version
If it shows 6.x series, there is wheel support.
Only then, you can install a wheel package like this:
pip install your-package.whl
To be able to install wheel files with a simple doubleclick on them you can do one the following:
1) Run two commands in command line under administrator privileges:
assoc .whl=pythonwheel
ftype pythonwheel=cmd /c pip.exe install "%1" ^& pause
2) Alternatively, they can be copied into a wheel.bat file and executed with 'Run as administrator' checkbox in the properties.
PS pip.exe is assumed to be in the PATH.
Update:
(1) Those can be combined in one line:
assoc .whl=pythonwheel& ftype pythonwheel=cmd /c pip.exe install -U "%1" ^& pause
(2) Syntax for .bat files is slightly different:
assoc .whl=pythonwheel& ftype pythonwheel=cmd /c pip.exe install -U "%%1" ^& pause
Also its output can be made more verbose:
#assoc .whl=pythonwheel|| echo Run me with administrator rights! && pause && exit 1
#ftype pythonwheel=cmd /c pip.exe install -U "%%1" ^& pause || echo Installation error && pause && exit 1
#echo Installation successfull & pause
see my blog post for details.
In-case if you unable to install specific package directly using PIP.
You can download a specific .whl (wheel) package from - https://www.lfd.uci.edu/~gohlke/pythonlibs/
CD (Change directory) to that downloaded package and install it manually by -
pip install PACKAGENAME.whl
ex:
pip install ad3‑2.1‑cp27‑cp27m‑win32.whl
EDIT: THIS NO LONGER IS A PART OF PIP
To avoid having to download such files, you can try:
pip install --use-wheel pillow
For more information, see this.
You can install the .whl file, using pip install filename. Though to use it in this form, it should be in the same directory as your command line, otherwise specify the complete filename, along with its address like pip install C:\Some\PAth\filename.
Also make sure the .whl file is of the same platform as you are using, do a python -V to find out which version of Python you are running and if it is win32 or 64, install the correct version according to it.
The only way I managed to install NumPy was as follows:
I downloaded NumPy from here
https://pypi.python.org/pypi/numpy
This Module
https://pypi.python.org/packages/d7/3c/d8b473b517062cc700575889d79e7444c9b54c6072a22189d1831d2fbbce/numpy-1.11.2-cp35-none-win32.whl#md5=e485e06907826af5e1fc88608d0629a2
Command execution from Python's installation path in PowerShell
PS C:\Program Files (x86)\Python35-32> .\python -m pip install C:/Users/MyUsername/Documents/Programs/Python/numpy-1.11.2-cp35-none-win32.whl
Processing c:\users\MyUsername\documents\programs\numpy-1.11.2-cp35-none-win32.whl
Installing collected packages: numpy
Successfully installed numpy-1.11.2
PS C:\Program Files (x86)\Python35-32>
PS.: I installed it on Windows 10.
New Python users on Windows often forget to add Python's \Scripts directory to the PATH variable during the installation. I recommend to use the Python launcher and execute pip as a script with the -m switch. Then you can install the wheels for a specific Python version (if more than one are installed) and the Scripts directory doesn't have to be in the PATH. So open the command line, navigate (with the cd command) to the folder where the .whl file is located and enter:
py -3.6 -m pip install your_whl_file.whl
Replace 3.6 by your Python version or just enter -3 if the desired Python version appears first in the PATH. And with an active virtual environment: py -m pip install your_whl_file.whl.
Of course you can also install packages from PyPI in this way, e.g.
py -3.6 -m pip install pygame
I would be suggesting you the exact way how to install .whl file.
Initially I faced many issues but then I solved it, Here is my trick to install .whl files.
Follow The Steps properly in order to get a module imported
Make sure your .whl file is kept in the python 2.7/3.6/3.7/.. folder.
Initially when you download the .whl file the file is kept in downloaded folder, my
suggestion is to change the folder. It makes it easier to install the file.
Open command prompt and open the folder where you have kept the file by entering
cd c:\python 3.7
3.Now, enter the command written below
>py -3.7(version name) -m pip install (file name).whl
Click enter and make sure you enter the version you are currently using with correct
file name.
Once you press enter, wait for few minutes and the file will be installed and you will
be able to import the particular module.
In order to check if the module is installed successfully, import the module in idle
and check it.
Thank you:)
On the MacOS, with pip installed via MacPorts into the MacPorts python2.7, I had to use #Dunes solution:
sudo python -m pip install some-package.whl
Where python was replaced by the MacPorts python in my case, which is python2.7 or python3.5 for me.
The -m option is "Run library module as script" according to the manpage.
(I had previously run sudo port install py27-pip py27-wheel to install pip and wheel into my python 2.7 installation first.)
What I did was first updating the pip by using the command:
pip install --upgrade pip and then I also installed wheel by using command: pip install wheel and then it worked perfectly Fine.
Hope it works for you I guess.
Download the package (.whl).
Put the file inside the script folder of python directory
C:\Python36\Scripts
Use the command prompt to install the package.
C:\Python36\Scripts>pip install package_name.whl
Theoretically:
Because wheel is a built distribution spec ie, no dependency on a build system and because it's a ZIP-format archive, it just has to be unpacked to the target location in-order to be used.
While pip install *.wheel adds extra features, we can also unzip (using a standard archive tool eg: 7zip) the .whl file into site-packages directory to use the package.
https://packaging.python.org/specifications/binary-distribution-format/

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