I installed python packages at a custom location using pip's option --target. The packages are imported and working fine in my python program which imports the modules. However, when I try to see the modules in my environment using 'pip list', those modules don't show up.
I am using a virtual environment and I ensured that I am in the virtual environment when I issue 'pip list' command
Related
Why when I using pip list I am receiving libraries list,
but then i am checking in Pycharm, I have view more there for my project.
It means that using install pip I am installing libraries for all projects , but from Pycharm (in settings) only for selected project?
In PyCharm, you work in a Virtual Environment also known as venv.
Installing packages there will not be installed globally.
For e.g.
In Pycharm, if you run pip install tabulate and then try importing tabulate outside PyCharm, it will show an ImportError and vice-versa
If you want to install that package for all projects, turn on Make available to all projects in project settings or while creating a new project.
To install package outside it, you will need to run pip install <package-name> in Command Prompt
I am pretty new to python. Just been working through some online tutorials on udemy. I seem to have an issue with pip installing modules.
I've tried reinstalling them.
Upgrading my python version.
In VS I always just get module not found.
If I do it in the cmd prompt this is what I get below.
You are currently working on the base environment of your computer. For safety, you can first create a new virtual environment with
python3 -m venv -n new_env
So that you won't corrupt any default installations. Then, activate it with
source new_env/bin/activate
And update the pip and setuptools with
pip3 install --upgrade pip
pip3 install --upgrade setuptools
Finally, install numpy via
pip3 install numpy
However, I would recommend using Anaconda to build your virtual environment. When you install Anaconda and make sure it is included in the path of your terminal, all you need to type is
conda create -n new_env python=3.7 numpy
and it will automatically build the wheel for numpy. Here, "new_env" is just an example for a virtual environment name, and Python version 3.7 is also an example.
You can then, activate this conda environment by
conda activate new_env
To use this virtual environment, which you built either with "venv" or "conda", you should locate and activate this environment from the project interpreter settings in VS .
Finally, I would also recommend considering Pycharm IDE which can also help you with creating a virtual environment and installing packages in it.
It seems that you already have the packages installed. Using VS, please, be sure that you selected the correct Python interpreter (https://code.visualstudio.com/docs/python/environments)
I've just installed Python for the first time and I'm trying to reference the win32com module however, whenever I try to import it I get the message "no module name win32com".
Any ideas?
the below plus add pywin32 in PyCharm setting work for me
python -m pip install pywin32
As it is not built into Python, you will need to install it.
pip install pywin
Since win32com is a Windows-specific package, this answer will be geared towards Windows users.
Option 1: Install locally with pipenv (recommended)
You can use a package manager like pipenv to manage your dependencies.
Ensure you have pipenv installed (pip install pipenv).
In your project directory, run pipenv install pypiwin32 to install the package.
Now you can run your code using commands like the following pipenv run main.py
Example main.py code:
import win32com
print(win32com)
Option 2: Install locally with venv (recommended)
If pipenv isn't your thing, you can use the built-in virtual environments.
From your project directory, run python -m venv venv to setup you virtual environment.
Run venv\Scripts\activate.bat from your project directory whenever you want to use this virtual environment (you will see (venv) added to your shell prompt to know it's activated).
Run pip install pypiwin32 from your active virtual environment to install the package.
You can run your code like python main.py so long as the virtual environment is active.
Option 3: Install globally (typically not recommended)
This is not typically recommended, but included anyway.
Using pip install pypiwin32 you can install the package globally.
Then you can run your code with just python main.py.
This will work as well
python -m pip install pywin32
You should try using pip this way:
pip install pypiwin32
It is pypiwin32 which should work.
When working with python projects its always a good idea to create a so called virtual environment, this way your modules will be more organized and reduces the import errors.
for example lets assume that you have a script.py which imports multiple modules including pypiwin32.
here are the steps to solve your problem:
1. depending on you operating system you need to download and install virtualenv package, in debian its as simple as sudo apt install virtualenv .
2. after installing 'virtualenv' package go to your project/script folder and create a virtualenv folder with virtualenv venv it creates a folder named venv in that directory.
3. activate your virtualenv source /path/to/venv/bin/activate if your already in the directory where venv exists just issue source venv/bin/activate
4. after activating your venv install you project dependencies pip install pypiwin32 or pip install pywin
5. run your script, it wont throw that error again :)
I have a MacBook Pro that came pre-installed with python2.7. I later installed python3 and ipython notebook. I installed pip too to install packages, and am able to install packages and run program from python3. However, for another project I need to run code in python2.7, and I am not sure how to install it in python2.7 folder.
I tried using pip for installing packages to 2.7, but it kept giving error saying package already exists. When I check for version of python using --version, I see 2 pythons installed. However, when I check for pip and pip3, both seem to be in th same folder.
Any tips on how to install packages in python2.7, without making any changes to 3.3? I am using python3 and ipython notebooks for another project.
viveks-mbp:~ vivekyadav$ which pip
/Library/Frameworks/Python.framework/Versions/3.3/bin/pip
viveks-mbp:~ vivekyadav$ which pip3
/Library/Frameworks/Python.framework/Versions/3.3/bin/pip3
viveks-mbp:~ vivekyadav$ which python
/usr/bin/python
viveks-mbp:~ vivekyadav$ which python3
/Library/Frameworks/Python.framework/Versions/3.3/bin/python3
You can use the virtualenv to create a kind of sandbox.
$ virtualenv <work-directory>
$ source <work-directory>/bin/activate
The last command initiate your virtual environment, totally isolated from the system. So every pip command will install the package inside this directory.
But you have to run your application inside the virtual environment too.
I am using EPD on OS X and have ipython installed. In my 'general' environment everything is functioning as expected. I installed virtualenv and virtualenvwrapper to generate a dev environment. I only want to install a small subset of 'new' modules (different versions), so I used:
mkvirtualenv development --python=epd --system-site-packages
Now what I would like to do is install ipython local to the virtual env. I believe that this is the preferred installation method as other techniques include adding code to ipython startup.
which pip & which python report that the virtual env files are being called. I can not install ipyhton though, because it already exists in my epd install.
Is it possible to create a virtualenv that uses the 'general' site-packages and then locally install ipython?
Sure, just tell pip to ignore the installed IPython:
pip install --ignore-installed ipython