I'm getting the error in the title when running a .py script. I have pandas installed (version 0.24.2) as you can see in the screenshot. The Python version is 3.7.3. When I run the command import pandas as pd in a Jupyter notebook it works. However, when I have the same command in a .py file ("MyFile.py") and try to run that file using Anaconda command prompt I get this error. Same happens when using the Windows command prompt. Can someone please advise on how to solve this?
The 2nd screenshot above shows that I can't find a folder for pandas in site-packages but anaconda seems to think it's installed.
have you tried python3.7 MyFile.py?
If not, I would try it. Then if it doesn't work I'd create a new environment with python 3.7, and then install pandas and run your code:
conda create -n test_env python=3.7
conda activate test_env
pip install pandas
python MyFile.py
Probably you have installed Python and afterwards Anaconda.
AnaConda has its own python exe and Libs that are automatically installed. They're probably located in (Windows path): C:\ProgramData\AnacondaX\
So, if you go to C:\ProgramData\AnacondaX\Lib\site-packages\ you will see a folder "pandas". It means that Pandas lib is installed for Anaconda exclusively.
On the other hand, you have installed Python in c:\Python27. I'd advise you firstly add to %PATH% environment variable to get access to Python from any folder you're in and after please check the libs you have installed in your Python (not Anaconda) with (pandas is not listed there):
c:>pip freeze
Next step is to install pandas for your Python installation. Just do it:
c:>pip install pandas
Anaconda uses its own python installation, which by default, and as per this documentation, should be under C:\Users\<your-username>\Anaconda3\.
By installing pandas via Anaconda, and then specifically running the script with a different python installation, you're running a script using a library within environment that does not have that library installed.
You can try installing pandas to this separate python installation (I saw your pip install didn't work, you could again specify this python installation and use pip as a module):
'C:\python27\python.exe' -m pip install pandas
Or run the script with the Anaconda python installation by specifying that python installation:
{path_to_anaconda_python} MyFile.py
Where path_to_anaconda_python is path to Anaconda python installation (by default, within C:\Users\<your-username>\Anaconda3\)
Related
Presently I'm using Python on a Windows system. I installed Python 3.10 from Anaconda and also the Pycharm IDE. I have ensured that Python is in the correct path in the environment variable. I have also replicated this problem using two different versions of Python, 3.10 and 3.9.
Very simply, in PyCharm, I open a terminal and type
conda install -c numpy numpy.
Then, I write a new "main.py" script. I have one line: "import numpy". I receive the error:
Traceback (most recent call last):
File "C:\Users\---\PycharmProjects\pythonProject3\main.py", line 17, in <module>
import numpy
ModuleNotFoundError: No module named 'numpy'
What am I doing wrong?
Going on advice from a friend, I created a new PyCharm project sitting not in my user directory but on the C: drive, and got the same error. Finally, when trying to re-install the package using either using either pip or conda, I get this message:
# All requested packages already installed.
You have 2 versions of Python:
Default Python (used everytime you open your command prompt and type python or python3)
Anaconda is installing packages in a virtual environment, using it's own Python (it is located in a different path)
You can see the path of your installed python using python -c "import os, sys; print(os.path.dirname(sys.executable))"
You have 2 Options:
Configure the PyCharm in order to use the anaconda Python. https://www.jetbrains.com/help/pycharm/configuring-python-interpreter.html#view_list
Open a command prompt in the project's folder (you can do it easily using PyCharm). Type conda env list. This will show you all available anaconda virtual environments. Choose 1 of them and type conda activate <env_name>, where <env_name>=the name of the environment. Then, run your program using python <name_of_your_program>
You can see the paths where the anaconda environments and packages are installed using conda info
There main reason for this is
You are running your main.py in different environment rather than where you installed numpy.
If you trying to run it via cmd use this method
Check which environment you are in right now. refer this and
this. But the most easiest way to do this is use where command
in windows cmd. C:\> where python or C:\> where python3. You will
get the path of activated interpreter.
list conda envs - conda env list
activate conda env - conda activate <env name>
then run this command. pip freeze . and check is there numpy in
the list. If not you have to find and activate the environment where
you have installed numpy.
If you want to run it in pycharm
Refer this on how to change pycharm interpreter.
https://www.jetbrains.com/help/pycharm/configuring-python-interpreter.html
Many things can cause this, usually its one of these
You may have to restart your terminal, or IDE if running in there, after installing a package to "refresh" the environmental path
The package is not in the environmental path
I apologize in advance for my poor vocabulary - I do not know much about environments, paths, and things of the sort. I am on macOS Catalina.
I created a program using Spyder from Anaconda. My program uses packages like pandas and numpy which are built into Anaconda. I used to be able to run the program in Terminal with the command: $ python3 app.py.
However, I recently downloaded Python 3.9.1 from https://www.python.org/downloads/mac-osx/. Ever since then, I have been unable to run the program in Terminal because of missing package errors like
import numpy as np
ModuleNotFoundError: No module named 'numpy'
I went to my applications folder, right clicked on Python 3.9.1, and clicked Move To Trash. This did not solve my problem. I reinstalled Anaconda (I did not uninstall it - just simply installed again), but that also did not solve my problem. I am able to run the program in Spyder (from Anaconda), but I wish to run it in Terminal again.
I believe the solution is simple, but I am not sure what to do. I have tried searching and reading but I am not familiar with the terminology. I think I just need to reset the environment, but I am not sure.
Anaconda is used for creating closed enviorments, so you don't need to thrash your computer with global packages.
Imagine you have 2 different projects. Project A works only on python 3.2 and Project B works on 3.8.
That's where anaconda comes in.Managing enviorments with conda
conda create -n PROJECTA python=3.2
conda create -n PROJECTB python=3.8
Now activate env you wish to work with. For macOS
source activate PROJECTA
Now you should see (PROJECTA) instead of (base)
Now inside this PROJECTA you can install modules you require like
pip install numpy
and when executing .py file
move to dir with your app.py file and
python3 app.py
this will be opened in conda enviorment you created and activated, using modules you installed in this env.
You can still edit py file and execute it through shell, but it will throw errors if you try to run it from IDE without linking project to respected conda enviorment.
If you are using PyCharm Configure a Conda vir env in PyCharm
You must create separate environments for every projects or it will get messed up.
conda create -n name_of_environment python=3.6
You must not delete the python folder into trash rather uninstall it Python 3.9.1 and remove its path from the directory.
In short if you run python from terminal and it is not supporting your Installed anaconda packages . You should use anaconda prompt instead of CMD.
Because your anaconda is not added to path rather then it picks up the python 3.9 you have installed from Python 3.9.1 from https://www.python.org/downloads/mac-osx/. ( This is the python with separate environment then anaconda so it wont detect anaconda packages ).
When you run the cmd and enter python it runs the python that you downloaded and installed rather then Anaconda
At the time of installing anaconda it gives option to add conda variables to path you can select those at installing stage / or add manually
I tried to run a python script file on Visual Studio. But the terminal keep pop up saying that I don't have the package installed... I don't know what is going on. I installed Python through homebrew and install all the package through pip3. I even find the path for all the package I have installed, and it's still not working.. I switched between multiple interpreter, and none of them worked, all said my package is not installed.. but it's clearly my package is installed... I even create a new py file to run pandas, and it worked.. Can someone help me with this? This is driving me crazy..
It just because you had chosen the wrong python environment in VSCode.
You said you had created a python file to run pandas and it worked. This means you had installed the package 'pandas' and it worked. But you haven't chosen this environment in your VSCode.
In the terminal:
By command "pip3 --version" to check which pip you are using.
By command "python3" -> "import sys; sys.executable" to check which python you are using.
By command "python3" -> "import sys; sys.path" to check which 'site-package' the interpreter searching for.
From your description, you are using the pip which under '/usr/local', install the packages under '/usr/local/lib/python3.7/site-packages', using python interpreter of '/usr/local/bin/python3'. This is the default python interpreter because of the system environment variables settings. But in VSCode you haven't chosen this environment.
Solution:
Choose an environment or create a virtual environment(recommend). Activate the environment(Ctrl+Shift+`), by the command 'pip3 --version' to check which pip3 you are using, then install the package you want to import.
If you installed python via homebrew try using homebrew to install pandas instead of pip. I've seen things before that they get linked. I would just recommend using pip to uninstall pandas first so there is only package.
I'm trying to install new python modules on my computer and I know how to install through the terminal, but I wish to know if there is a way to install a new module directly through VSCode (like it is possible on PyCharm)?
I already installed through the terminal, it isn't a problem, but I want to install without be obligate to open the terminal when I'm working on VSCode.
You should open the terminal inside the VSCode and install the modules you want.
something like👇
if that's not you meant, please let me know.
First of all I would advise you to select the current Python version you have. It has been explained here:
VSCode: There is no Pip installer available in the selected environment
Next, you should check is the pip installed in your Python main directory or not, by checking how to do on this website:
https://pip.pypa.io/en/stable/installing/
or this thread
How to use pip with Visual Studio Code
by typing
py -m pip
in your terminal, like
C:\Users\m\Desktop\Python> py -m pip
You should have the list of commands and general options which can be used. One of them is install
On the Python library platform, you always have the command to be copied in order to the installation of package you want.
In your terminal, the initial command should look as:
PS C:\Users\m\Desktop\Python> py -m
to which you should append the command prepared on the Python library platform (by copying it and pasting).
C:\Users\m\Desktop\Python> py -m pip install openpyxl
That's it. The package should be installed in your Python folder, what you will see in the terminal.
If everything is alright, you just need to type
import openpyxl #or other package name, which you downloaded
and use it!
Unfortunately! for now, only possible way is terminal.
I try to install Theano by Anaconda. It works, but when I enter the python -i, import theano shows No module named 'theano'. Do I need to switch another interpreter of Python, how? Also, for the packages installed by conda, if I don't double install them, can I find in Python? How is Python related to Python by Anaconda? Thanks!!!
I had have a similar issue, trying to install folium. If you are using the Anaconda:
When you install using conda install -c conda-forge folium, the package will be placed in:
./anaconda3/envs/[name env]/lib/python3.7/site-packages/folium
When you install using pip (with a anaconda env activated), pip install folium, the package will be placed in:
./anaconda3/lib/python3.7/site-packages/folium
Python use first the sites-packages as the target directory of manually built python packages. When you build and install python packages from source (using distutils, probably by executing python setup.py install ), you will find the installed modules in site-packages by default.
In this case you have two places: /anaconda3/lib/python3.7/site-packages/ and /anaconda3/envs/[name env]/lib/python3.7/site-packages/.
First the modules will be available as default in /anaconda3/lib/python3.7/site-packages/. Sometimes (and I really don't know why) the modules inside sites-packages conda env are not available to import automatically without export the PATH.
So, to solve this issue, you have 2 options:
Installing using pip install folium and import folium (don't need install by conda install), or
After conda install , run conda init, close the terminal and open a new one. So, try to import again.
Here are some tips about use a pip in a conda-environment.
You can refer to a specific version of python by using the following at the first line of your .py file
This is for python 2.7
#!/usr/bin/env python2.7
This is for python 3
#!/usr/bin/env python3
As other users already pointed out you need to check if your module is included in your sys path. Use code:
import sys
print(sys.path)
If not you can include this in your sys.path by using the command:
sys.path.append('/path/to/the/folder/of/your/module/file')
or place it in default PYTHONPATH itself.
Other great answers:
https://stackoverflow.com/a/19305076/5381704
The problem is that in the code editor you are using, you are running the default interpreter. Based on your code editor, change the python interpreter to the conda interpreter and it will work.
In my case that happened because conda screwed up the environment variables. Instead of using env-specific python and pip, it used the globally installed ones.
Solution:
conda deactivate your-env
conda activate your-env
In my workstation, I was able to solve No module named <module name> error using two different ways.
First method, I solved this temporarily by:
(1) Open a Terminal
(2) $ conda activate <Conda environment name>
(3) $ export PYTHONPATH=/home/<user name>/anaconda3/envs/<Conda environment name>/lib/<Python package version>/site-packages:$PYTHONPATH
It is a temporary solution. Whenever you run your virtual environment, you have to do this.
My runtime environment:
OS: Unbuntu 18.04
Conda version: 4.8.2
Conda-build version: 3.18,11
Python version 3.7.6.final.0
Second method, I removed the
alias python=/usr/bin/python3.6 line in bashrc file.
Somehow this line blocks using Python tools installed in Anaconda Virtual Environment if the Python version in the Virtual Environment is different.