I am having trouble installing the aws CLI for windows.
I am following these instructions here
It requires that I have Python 3.6.2 but I have Python 2.7.6 when I run python --version
After I run
pip install --user --upgrade awscli
and then try to run
aws --version
nothing happens.
I tried setting my path in Environment Variables but it still won't work.
After this, I tried to upgrade my python version by installing python 3.6 on their website, but my python version won't update when I run python --version.
Could this be that start of why I cant install the CLI?
Use this link to download and install AWSCLI Download the AWS CLI MSI installer for Windows
then go to C:\Program Files\Amazon\AWSCLI or where-so-ever you have installed this and set the path in Environment variables.
Cheers!
Have you gone through the steps on the amazon website? Python 2 and 3 are quite different from what I understand.
https://docs.aws.amazon.com/cli/latest/userguide/installing.html
The AWS script you are running is really just a python program. I recommend verifying install paths, and possibly use their bundled installer found on the page above, about half way down.
At first make sure you have installed python3. Check it with command:
Try to verify python version with command(on centos or redhat):
$ rpm -qa|grep python3
And then make sure python3 has been added to $PATH
$python3 --version
And I think you need to install pip3 for python3.X.
$yum search python3|grep pip
And then install the package you need with command
$ pip3 install --user --upgrade awscli
You can develop Python software for AWS in both Python 2.x and 3.x. The CLI is written in Python 2.x.
You can have both Python 2 and Python 3 installed on your system. You can either specify the python.exe manually using its full path (not recommended but I do this all the time) or by updating your environment PATH variable to point to the correct Python installation. I use a batch file so that I can switch back and forth between Python 2 and Python 3.
When you run "pip install --user --upgrade awscli" the version of Python that is running determines the awscli package that is downloaded and installed.
For Microsoft Windows, AWS provides an MSI installer package that contains everything that you need including the correct version of Python 2.7. I recommend that you start with the AWS Windows MSI and then learn how Python works (environment) on Windows.
Keep in mind that Python 2.x is going away. This is not official but plan for January 1, 2020 as the drop dead day. This means where possible develop for Python 3. IMHO it is time to stop developing for AWS in Python 2.x.
If you have choco installed the following will work....
choco install -y awscli
$env:Path += ';C:\Program Files\Amazon\AWSCLI'
Related
I just downloaded VSCode on my Mac as well as Python and pip. I downloaded the latest version of Python via VS Microsoft extensions and installed pip using Python -m ensurepip --upgrade. I have python 2.7.16 on my Mac as well, I believe from my OS (it's not something I downloaded). I am trying to use pip and Python in VSCode. I have my interpreter in my virtual environment set to Python 3.8.2, and I created the virtual environment using "python3 -m venv .venv". However, every time I check the python version (with Python --version) in the terminal, it returns Python 2.7.16. I check the pip version, and there is no command found. When I check the pip3 version, I get back the following warning:
WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
You can invoke Python with '-m pip' instead of running pip directly to avoid this problem.
pip 21.3.1 from /Users/username/Library/Python/3.8/lib/python/site-packages/pip (python 3.8)
Whenever I run Python -m pip or Python -m pip3, it returns "no module named pip".
When installing Python, I got a warning that Python 3 was not on the PATH, but it did not fix the issue when I tried to add the path. Unfortunately, I don't have much experience adding a path so I may have done that incorrectly.
Finally, I installed streamlit via pip3. It resulted in the following message but seemed to install. However, it could not be resolved when I tried to import streamlit in my code.
WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
You can invoke Python with '-m pip' instead of running pip directly to avoid this problem.
Defaulting to user installation because normal site packages is not writeable
How do I add Python 3 to my PATH and ensure that VSCode runs Python 3 instead of 2?
Simply always refer 'python3' rather than 'python'.
python3 --version
python3 -m pip install blahblahblah
I'm a little lost on how to get pyodbc installed in my computer.
I have python 3.6.1
The link
http://support.esri.com/en/technical-article/000011656
pointed me to another link
https://github.com/mkleehammer/pyodbc
Which is vague.
I'm used to downloading and running an exe for install.
This link is unclear and says all I have to do is:
"pip install pyodbc"
What exactly do I need to do to get this working?
Since you have not mentioned which OS you are using,
I will assume that you are on windows (as you have mentioned that you are used to install using .exe).
Firstly you need to know what a pip is:
pip is basically a package manager for python packages used to install 3 rd party packages which do not bundle along with the python distribution.
On linux pip comes pre installed also if you are using python version 3.4 onwards or python 2.7.9 you will be having pip pre installed on your system.
All you have to do it to open the command prompt issue the command
pip install package-name(pyobdc here)
it will do the job.
If you do not find pip in your distribution you can refer this link
How do I install pip on Windows?
open cmd in your computer and type
pip install pyobdc
Hello there and welcome to python programming. Basically python comes with its package installer so either you can go to any interpreter that you are using and type pip install pyobdc or use the command prompt in windows and type in pip install pyobdc. This would install your module and just remember to put import pyobdc at the top of the code if you want to use this package. Further information can be found on here
Python newbie here. I just bought a new Mac Book Pro (switched from Windows) and Python 2.7 is already installed on it. I want to install 3.6 side by side and choose between the two versions. I found a great tutorial located here http://joebergantine.com/articles/installing-python-2-and-python-3-alongside-each-ot/ but I'm confused on one of the command line operations. Under Python 2 Installation it says:
Install Python 2 from the latest Python.org package. This allows you to run python2 and pip. After this installation Python 2.x will be accessible at /Library/Frameworks/Python.framework/Versions/2.7/bin/.
Once the Python 2 package is installed, install virtualenv for Python
2 for the User only. When specifying the User installation, Python
packages are then accessible at ~/Library/Python/2.7/bin. Specifying
the User installation doesn't automatically add virtualenv to the
system path which we will do manually in the next step via an alias.
This is what allows Python3 and Python2 to run alongside each other:
$ pip install --user virtualenv
Do I have to be in the ~/Library/Python/2.7/bin directory when I run this command or the /Library/Frameworks/Python.framework/Versions/2.7/bin/ directory? I'm confused because I don't know where the former directory is coming from.
Why not using pip for python 2.7 and pip3 for python 3.6?
If it says pip3 is not installed you can use sudo apt-get install pip3
then you can use pip3 for python 3.6 and pip for python2.7 for installing packages for respective versions
I faced the exact error, in the exact situation about 2 years ago. The solution to your issue is pyenv. I was able to run multiple versions of python inside different folders of the same directory. It truly was a very nice solution.
Hope this helps.
I have currently used the python Package Larch (https://pypi.python.org/pypi/larch) on Windows. It works nicely and I am really impressed with its performance. To use the package with some large models I want to install it on a Linux server (Ubuntu 14.04.4) where I do not have the root permissions. Though knowing that the OS requirements for the package are Window or MacOS and being a beginner with Linux, I still gave it a try.
I was able to install python locally using anaconda distribution but when I used pip to install larch, I got the following message
Could not find a version that satisfied the requirement larch (from version: )
No matching distribution found for larch
So it seems to me that I can not just deliberately try to install the package on linux with out any additional work. I then tried to find solutions for my issue but I could not find any. Therefore I would like to ask if there is any workaround for my problem?
Thank you so much for your help!
[Edit]
larch does not support python2.x, and only support Windows, MACOSX.
For installing in Linux, I suggest to use wine to run windows python program with larch.
For more information about wine in Ubuntu. You can search with keyword such as How To Run Windows Software on Ubuntu with Wine
For installing in macosx. Making sure your environment have python3. You can use which python3 to check that.
$ which python3
/usr/local/bin/python3
Then, without root permission, you can install package via virtualenv. (A workstation should provide this command)
$ virtualenv -p $(which python3) env
$ . env/bin/activate
(env) $ python -V
Python 3.x.x
And finally, you can install larch via pip.
(env) $ pip3 install larch
For more information about virtualenv
"Larch can be installed from source code. If not using Anaconda, this is necessary for Linux, and can be done for other systems as well.
The latest releases of the source code will be available from Larch releases (github.com). In addition, you can use git to grab the latest development version of the source code:git clone http://github.com/xraypy/xraylarch.git" After unpacking the source distribution kit, installation from source on any platform is:
python setup.py install
source:http://cars.uchicago.edu/xraylarch/installation/index.html
edit: See this for doing this without root access
How to install python modules without root access?
Story:
One of the app that i have works on python 2.4 and other on 2.6. I tried to do a sym link of python2.4 to python and things started to break loose on ubuntu jaunty.
Now i am downloading every dependency of 2.4 and installing it using python2.4 setup.py install. The dependencies seem to be endless.
Question1: How will i tell any framework that go and use version so and so pf python like day django to use 2.6 and say mjango to use 2.4? Something like we say use database databasename kinda syntax.
Question2: Is there more elegant way to switch between version as my hack of symlinking was a virtual disaster?
Question3: Can I download a deb for say hardy and make jaunty believe its for her?
Use Virtualenv.
There is more information here: Working with virtualenv.
Using virtualenv you can create a new virtual python environment with whatever version of Python you want for each project or application. You can then activate the appropriate environment when you need it.
To expand on my answer:
You can install multiple versions of Python on your computer (I have 2.4, 2.5, 2.6 and 3.1 on my machine - I install each from source). I use a Mac, and keep my system Python as whatever OS X sets as the default.
I use easy_install to install packages. On ubuntu you can get easy_install like this:
sudo apt-get install python-setuptools
To install virtualenv then do:
easy_install virtualenv
I tend to create a new virtualenv for each project I'm working on and don't give it access to the global site-packages. This keeps all the packages tight together and allows me to have the specific versions of everything I need.
virtualenv -p python2.6 --no-site-packages ~/env/NEW_DJANGO_PROJECT
And then whenever I am doing anything related to this project I activate it:
source ~/env/NEW_DJANGO_PROJECT/bin/activate
If I run python now it uses this new python. If I use easy_install it installs things into my new virtual environment.
So, virtualenv should be able to solve all of your problems.
Pythonbrew is a magical tool. Which can also be called as Python version manager similar to that of RVM-Ruby version manager but Pythonbrew is inspired by Perlbrew.
Pythonbrew is a program to automate the building and installation of Python in the users $HOME.
Dependencies – curl
Before Installing the Pythonbrew, Install “curl” in the machine, to install curl use the below command in the terminal, give the the password for the user when prompted.
$sudo apt-get install curl
After Installing the curl, Now Install Pythonbrew, copy and paste the following commands in the terminal and type the password for the user when prompted.
Recomended method of installation - Easy Install
$ sudo easy_install pythonbrew
To complete the installation, type the following command
$pythonbrew_install
Alternate method of installation:
Use curl command to download the latest version of pythonbrew from github.
curl -kLO http://github.com/utahta/pythonbrew/raw/master/pythonbrew-install
After downloading, change “pythonbrew-install” to “executable”
chmod +x pythonbrew-install
Then, run the pythonbrew-install in the terminal
./pythonbrew-install
Now the Pythonbrew has been installed in the “Home Directory” i.e., /home/user/.pythonbrew
Next, copy and paste the following line to the end of ~/.bashrc
*NOTE: change “user” to your user name in the system
source /home/user/.pythonbrew/etc/bashrc
Thats it! Close the terminal.
Steps to Install different versions of Python:
Open a new terminal, type the following command or copy and paste it.
$pythonbrew install 2.6.6
This will install Python 2.6.6 and to install Python 2.7 or Python 3.2, change the version number in the previous command.
$pythonbrew install 2.7
or
$pythonbrew install 3.2
Update: If you get error while Installing then Install using the below command.
$pythonbrew install --force 2.7
or
$pythonbrew install --force 3.2
How to manage different versions of Python installed in system
For instance, if Python 2.6.6, Python 2.7 and Python 3.2 is installed in your system, switching between the versions can be done as follows:
By default, Python 2.6.6 will be active and in order to switch to Python 2.7 use the below command
$pythonbrew switch 2.7
The default Python is changed to Python 2.7.
Now, to switch to Python 3.2 change the version number in the previous command.
$pythonbrew switch 3.2
Use the below command to check or list the installed Python versions
$pythonbrew list
Use the below command to check or list the available Python Versions to install
$pythonbrew list -k
To uninstall any of the installed Python version (for example to uninstall Python 2.7), use the below command.
$pythonbrew uninstall 2.7
Use the below command to update the Pythonbrew
$pythonbrew update
Use the below command to disable the Pythonbrew and to activate the default version
$pythonbrew off
Enjoy the experience of installing multiple versions of Python in single Linux / ubuntu machine!
I find http://github.com/utahta/pythonbrew much easier to install and use than any other solution.
Just install it and you'll have these options:
pythonbrew install 2.7.2
pythonbrew use 2.7.2 # use 2.7.2 for a current terminal session
pythonbrew switch 2.7.2 # use 2.7.2 by default system wide
pythonbrew uninstall 2.7.2
Note: if you're using a Linux-based operating system with preinstalled Python, switching (system wide) to another version can make things go wrong, so be careful.
A more grassroot approach than Virtualenv is the side-by-side installation of two Python versions.
If there is an existing installation, and you want a second installation into the same root path (e.g. /usr/local), use this target when making install:
make altinstall
When your second installation is Python 2.6, this will leave you with a /usr/local/bin/python2.6 alongside the old /usr/local/bin/python.
A simple way to switch between these two versions is using a shell alias (alias python=/usr/local/bin/python2.6) on the shell where you invoke the interpreter. But this won't work across sub-shells and she-bang invocations.
pyenv is yet another Python manager. The README.md at that link has a good set of instructions, but they basically are:
$ cd
$ git clone git://github.com/yyuu/pyenv.git .pyenv
Then set up your $PATH.
$ echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
$ echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(pyenv init -)"' >> ~/.bash_profile
Install the desired versions of Python:
$ pyenv install 2.7.8
After installing you need to run this:
$ pyenv rehash
Then switch to the version of Python you want to run, for the shell:
$ pyenv shell 2.7.8
"Question1: How will i tell any framework that go and use version so and so pf python like day django to use 2.6 and say mjango to use 2.4?"
You simply run them with the specific python version they need. Run mjango with /usr/bin/python2.4 and django with /usr/bin/python2.6. As easy as that.
"Question2: Is there more elegant way to switch between version as my hack of symlinking was a virtual disaster?"
Yes, see above. Have two separate installs of Python, and run explicitly with the different versions.
"Question3: Can I download a deb for say hardy and make jaunty believe its for her?"
That generally works. If it doesn't, it's because it has dependencies that exist in Hardy, and does not exist in Jaunty, and then you can't.
And here is a Question 4 you didn't ask, but should have. ;)
"Is there an easier way to download all those Python modules?"
Yes, there is. Install setuptools, and use easy_install. It will not help you with library dependecies for those Python modules that have C code and need to be compiled. But it will help with all others. easy_install will download and install all the Python dependencies of the module in question in one go. That makes it a lot quicker to install Python modules.
Move to the project directory :
Create an environment :
virtualenv -p python2.7 --no-site-packages ~/env/twoseven
Then activate your source :
source ~/env/twoseven/bin/activate