Tab completion on IPython seems not to be working. For example,
import numpy
numpy.<tab>
simply adds a tab.
import numpy
num<tab>
just adds a tab, too. Could you please suggest some possible causes for this problem? I am running Windows 7 and Python 2.6.5.
Be sure you have installed the pyreadline library. It is needed for tab completion and other IPython functions - in Windows it doesn't come with the IPython package and you have to install it separately -
> pip install pyreadline
In case anyone is using the recent 7.19.0 and autocomplete does not work, try downgrading jedi to 0.17.2:
pip install jedi==0.17.2
See https://github.com/ipython/ipython/issues/12740 for details.
pip uninstall jedi --yes
and
pip install pyreadline
The current Ipython with the Jupyter notebook doesn't require jedi.. So you have to just uninstall it with the above command.
I got it from here.
pip told me I had pyreadline version 1.7.1 installed
C:\Users\me>pip freeze | grep readline
pyreadline==1.7.1
Upgrading pyreadline fixed it for me:
C:\Users\me>pip install --upgrade pyreadline
C:\Users\me>pip freeze | grep readline
pyreadline==2.0
Your ipythonrc file may be out of date.
Try running
ipython -upgrade
Downgrading iPython did the trick.
pip install --upgrade ipython==5.8.0
I had this problem.
I solved by downgrade the python-parso package
downgrading the python-parso package (0.8.0-1 => 0.6.2-1)
This should definitely work as it worked in my case
conda install ipython
pip install jedi==0.17.2
The classic 'have you tried turning it off and on again' worked for me.
pip uninstall ipython
pip install ipython
As of right now, on a OSX, pip installed ipython doesn't give tab completion, pyreadline release.py is busted .. what WFM:
easy_install ipython readline
YMMV.
Someone else in StackOverflow posted this link: http://www.vankouteren.eu/blog/2009/06/getting-ipython-readline-and-auto-completion-to-work-on-mac-os-x/
Its basicly easy_install readline than discover where the readline egg got installed and edit the ipython bin script to use this readline:
Install the "official" readline: easy_install readline
Discover where it is. Look at /Library/Python/site-packages/readline-*.egg or in your Virtualenv counterpart
Discover where ipython bin is: which ipython
Add ONE LINE to this file, adding the readline egg path right after import sys line.
My virtualenved ipython bin script got working as follow:
#!/Users/alanjds/src/git/cervejeiras/venv/cervejeiras-lfs/bin/python
# EASY-INSTALL-ENTRY-SCRIPT: 'ipython==0.13.1','console_scripts','ipython'
__requires__ = 'ipython==0.13.1'
import sys
### ONLY LINE ADDED:
sys.path.insert(0, '/Users/alanjds/src/git/cervejeiras/venv/cervejeiras-lfs/lib/python2.6/site-packages/readline-6.2.4.1-py2.6-macosx-10.6-fat.egg')
####
from pkg_resources import load_entry_point
if __name__ == '__main__':
sys.exit(
load_entry_point('ipython==0.13.1', 'console_scripts', 'ipython')()
)
I realize this is a really old question, but none of the answers above worked for me (And this is the first hit you get when you google a question of this nature).
I should mention that this is NOT exclusive to windows, I had the problem running CentOS 6.5 and Python 2.7
Here is what I did:
apt-get/yum install ncurses-devel
#If you want history in iPython:
apt-get/yum install sqlite-devel
easy_install ipython readline
ipython
In [1]: from
Display all 391 possibilities? (y or n)
If you don't have the -devel packages, your install will fail when it comes time to link them and build the eggs.. Hope this helps others!
I had this problem and knew that I had the pip installed for the module I was looking for. Performing $ ipython --init solved the problem for me.
I had to mv ~/.ipython{,.bak} in my case.
If you use Jupyter notebook and you still did get Tab auto-complete working after you tried all the steps suggested in the post here, you might want to check if you are trying to use the Tab auto-completion within a function definition. Ifyour import statements are part of the function such as below, you will not get the Tab auto-completion. You need to put the import statements outside the function and also execute them once before asking for auto-completion on the packages.
def myfunction():
import pandas as pd
import numpy as np
a = pd.DataFrame(np.random.normal(1,3, (4,4))
return a
I faced the same problem with the numpy library. The issue is with the particular version of ipython or jupyter notebook and it is resolved by simply updating ipython or jupyter.
If you are using a conda environment like anaconda or miniconda then update ipython in that environment by using
conda update ipython
In case of anaconda you also need to update the qtconsole
conda update qtconsole
Sometimes anaconda constraints the update of ipython then try
conda update -all
If you are not using a environment then directly update using pip
pip update ipython
I solved my issue by installing jedi-language-server:
pip install -U jedi-language-server
PS, I was installed Ipython from Conda in a virtual env and used the above command when the env was activated.
To check if ipython and the modules it uses match, run pip check ipython.
For my configuration with ipython 7.25 in July 2021, this gave a good clear warning:
ipykernel 6.0.1 has requirement importlib-metadata<4; python_version < "3.8.0", but you have importlib-metadata 4.6.0.
You may of course see different warnings --
this is just an example, unrelated to tab completion.
Then to downgrade it, e.g.
pip install 'importlib-metadata<4' # don't forget the 'quotes'
Successfully uninstalled importlib-metadata-4.6.0
Successfully installed importlib-metadata-3.10.1
Also useful:
pip list -- everything in your $PYTHONPATH, with version and location
pip check -- everything
pip show ipython --
Requires: traitlets, pygments, jedi, decorator, pickleshare, pexpect, appnope, matplotlib-inline, setuptools, prompt-toolkit, backcall
but to see the required versions you have to look at
.../site-packages/ipython-*.dist-info/METADATA
Pyreadline is needed by ipython. Install pyreadline. This was done in Windows 7. Get pyreadline zip, pyreadline-master.zip, unzip. In powershell change directory into uzipped pyreadline, make sure python is set in Path, and enter commandpython setup.py install This will intall pyreadline in C:\Python27\Lib\site-packages
Related
When i try to use from IPython.display import clear_output, display_html, then i show the error:
(ImportError: No module named IPython)
I am using Python 2.7.13, and im trying to make the game of life from John Conway. I am following this link: http://nbviewer.jupyter.org/url/norvig.com/ipython/Life.ipynb
I have read another questions and answers about it, but any answer works for me. First, this error is showed in command line, and when i try to run this code in a file. Second, this error is direct to IPython, not submodule or something similiar.
Ok, finally i achieved my goal.
I wrote ipython --version but i found, it was not installed.
I tried to install it, with pip. I went to C:\Python27\Scripts, here is pip, you can try in this directory, or add to environment variables.
I tried to install ipython, but i found a error
error: Unable to find vcvarsall.bat
so i installed visual studio c++ 9.0, the version to python 2.7.
pip install ipython
If you scrolled this far you may want to try:
import IPython
as opposed to import Ipython. Notice that 2 letters are capitalized
For Anaconda try,
conda install -c anaconda ipython
Use this code to install the IPython library:
!pip install ipython
import IPython
Well, this works on Google Colab.
This is most likely because ipython is not installed.
You can install it with pip.
pip install ipython
If you are using Anaconda (the full version) ipython comes preinstalled. If you are using Miniconda or if the ipython is deleted for some reason you can re-install with
conda install -c anaconda ipython
If you are using it with jupyter. You might want to register the ipython with a user.
python -m ipykernel install [--user] [--name <machine-readable-name>] [--display-name <"User Friendly Name">]
Reference :
Official Documentation
I have a similar issue, but it appears when I was running the script under sudo. Fast and easiest way was to install IPython under sudo.
sudo pip3 install IPython
I am running a script that uses IPython module, in my terminal. If you are also trying to do something similar, this answer might help you.
!pip3 install IPython
Things to keep in mind:-
'I' and 'P' in IPython are uppercase.
I am running the above command in python 3.7.
you need to import
from IPython.display import Image
initially, I imported
from IPython.display import image
so there is Image not image
For me, the problem (that drove me crazy) is that I actually needed capitalization. The correct import after pip install is:
from IPython.display import display, update_display
etc.
Since yesterday I've had this error when I try to import packages on anaconda :
ImportError: Missing required dependencies ['numpy']
I have tried un-installing Anaconda and Python, switching to Python 2.7 but nothing works it's still the same error, here is the code I get :
Any help is really appreciated thanks !
I had this same issue immediately after upgrading pandas to 0.19.2. I fixed it with the following install/uninstall sequence from the windows cmd line:
pip uninstall pandas -y
pip uninstall numpy -y
pip install pandas
pip install numpy
This also broke my matplotlib install so I uninstalled/installed that as well.
Very odd behavior for a seemingly routine upgrade.
What happens if you try to import numpy?
Have you tried'
pip install --upgrade numpy
pip install --upgrade pandas
I had to install this other package:
sudo apt-get install libatlas-base-dev
Seems like it is a dependency for numpy but the pip or apt-get don't install it automatically for whatever reason.
I had this problem with last version of numpy 1.16.x
Problem resolved with
python3 -m pip uninstall numpy
python3 -m pip install numpy==1.14.0
Did you install miniconda and pandas without dependencies?
Try installing numpy first with conda install numpy or pip install numpy.
If you're on Windows you can get pre-compiled versions of most libraries that require compilation from here.
On Windows 10 Anaconda3-5.3.0-Windows-x86_64 I had the Missing required dependencies ['numpy'] error when running scripts as so, %HOMEPATH%\AppData\Local\Continuum\anaconda3\python.exe pandas_script_foo.py.
In my case the error was caused by missing Anaconda package PATH definitions when running Anaconda python.exe in a windows cmd.exe session. The numpy package is not missing. It just can't be found on the PATH.
The Anaconda installation includes windows shortcuts that give examples of configuring the PATH per script run. See the shortcuts in the %HOMEPATH%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Anaconda3 (64-bit) directory for examples.
See the %HOMEPATH%\AppData\Local\Continuum\anaconda3\cwp.py script to see how Anaconda configures PATH.
Below is an example windows BAT file that calls cwp.py to setup PATH, and then run a python script. Its a copy of the commands the Anaconda jupyter-lab shortcut executes.
%HOMEPATH%\AppData\Local\Continuum\anaconda3\python.exe ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3\cwp.py ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3 ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3\python.exe ^
%HOMEPATH%\AppData\Local\Continuum\anaconda3\Scripts\jupyter-lab-script.py
If you need to execute python scripts on Anaconda with the conveniance of running a BAT file, the above BAT file example should do the trick.
The data manipulation capabilities of pandas are built on top of the numpy library. In a way, numpy is a dependency of the pandas library. If you want to use pandas, you have to make sure you also have numpy. When you install pandas using pip, it automatically installs numpy. If it doesn't, try the following
pip install -U numpy pandas
For conda
conda install numpy pandas
I also faced the same issue. It happened to me after I upgraded my numpy library.
It was resolved in my case by upgrading my pandas library as well after upgrading my numpy library using the below command:
pip install --upgrade pandas
Try:
sudo apt-get install libatlas-base-dev
It should work now.
Else, try uninstall and reinstall numpy and pandas.
I had the same issue. It was because I had multiple versions of numpy installed. Remove all versions by repeatedly using:
pip uninstall numpy
Then re-install it with the command:
pip install numpy
First, try to import numpy on it's own, like so:
import numpy as np
I got this message:
ImportError: Something is wrong with the numpy installation. While importing
we detected an older version of numpy in
['/home/michael/.local/lib/python3.6/site-packages/numpy']. One method of
fixing this is to repeatedly uninstall numpy until none is found, then
reinstall this version.
So do what it says, keep uninstalling numpy until there is none, and then reinstall.
This worked for me.
I had the same issue while using Microsoft Visual Code with Python 3.7.3 64-bit('base':conda)as my python interpreter. Before running any code type the following three commands:
C:/ProgramData/Anaconda3/Scripts/activate #activate conda Scripts directory
conda activate base #activate conda
& C:/ProgramData/Anaconda3/python.exe #to run python
I have same problem.
I have got two version of numpy 1.16.6 and 1.15.4, fresh installed pandas did not work correctly.
I fixed it by uninstalling all versions of numpy and pandas and install the last versions.
$ pip uninstall numpy pandas -y
Uninstalling numpy-1.16.6:
Successfully uninstalled numpy-1.16.6
Uninstalling pandas-0.24.2:
Successfully uninstalled pandas-0.24.2
$ pip uninstall numpy pandas -y
Uninstalling numpy-1.15.4:
Successfully uninstalled numpy-1.15.4
Cannot uninstall requirement pandas, not installed
$ pip uninstall numpy pandas -y
Cannot uninstall requirement numpy, not installed
$ pip install numpy pandas
I had the same issue with anaconda package, it got updated.
anaconda {4.3.1 -> custom} ## I am not sure if this was the issue
Hit below command to know
conda list --revisions
what i did is just uninstall pandas with conda and re-install it
conda install pandas
Some new libs may also get installed with it.
It worked for me hope will do the same for you.
Uninstall all pip packages that you're having problems with. Manually remove all site-packages files. If you're using MacPorts, sudo port clean .
Then try reinstalling. Sometimes, there are files that should have been removed, but weren't if the installation was abruptly interrupted or something.
There could be an issue with conflicting versions of the package(s), as well as potentially issues with Pathing. Are you sure you've set the correct Path for your binaries? (/opt/local/bin, /anaconda2/bin, etc.)
Another issue could be some PYTHONPATH that's explicitly looking in the wrong place for the file.
I had a same issue recently with Anaconda with Python 3.7.
I solved this problem by downgrading python version to 3.6:
conda install python=3.6
and then by updating all the packages:
conda update --all
pandas is built on top of numpy so you need to have numpy to use the data manipulation feature, so install numpy first.
pip install numpy
This worked in my anaconda environment, but I do not know why conda does not work. For some reason conda uninstall was not sufficient. This only worked with conda remove.
conda remove pandas
conda remove numpy
conda install pip
pip install pandas
*With help from this answer
This raises the following import warning in python 3.6 and 3.7:
ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
If you with to ignore this warning (and maybe other ImportWarnings), add the following to your script before importing pandas:
import warnings
warnings.filterwarnings('ignore', category=ImportWarning, module='_bootstrap.py')
In my case even though I was using the above options of uninstall and installing using pip the code was still giving me same errors.
Finally, I created a vritual environment and Installed numpy and pandas using pip in my virtual env. Now the code is running.
Steps: for Anaconda3 - Please change according to your installation type:
[if you dont have virtual env package installed]
$ pip install virtualenv
[from command prompt go to the directory by c:\anadonda3\scripts
[write the following command to use virtual env to create a virtual env for you in your desired location]
$virtualenv c:\anaconda3\envs\my_virtual_env
[once created you will have to activate your virtual env]
$c:\anaconda3\envs\my_virtual_env\scripts activate
[now pip install numpy and pandas and other required packages using pip]
[once installations are done exit from the virtual env]
$c:\anaconda3\envs\my_virtual_env\scripts deactivate
now use the python.exe inside your virtual env folder to run the script and it will run even with python 3.7.
I am using Win10 and Conda, and this issue just append to me when upgrading python 3.7.2-h8c8aaf0_0 --> 3.7.2-h8c8aaf0_2.
I solved it by return to the previous version with
conda install python=3.7.2=h8c8aaf0_0
If you're running your program on PyCharm on Windows, there is a known bug, because PyCharm simply doesn't add env-related paths to PATH.
The issue is fixed in the 2019.1 Early Access Preview (EAP) build.
For me installing the EAP fixed the issue.
nothing worked for me ... except when I found this
I suspect that you have a local file called unittest.py that is getting imported instead of the standard module.
I was trying to upgrade my anaconda 2 with anaconda 3. I tried installing Anaconda3-2018.12-Windows-x86 and Anaconda3-2019.03-Windows-x86_64 on my Windows 10 machine and failed with this error. For me, using Anaconda3-4.4.0-Windows-x86_64 for anaconda 3 worked the trick after trying everything listed in answers here.
I fixed this using Anaconda by going to Environments > base(root), searching for numpy in the installed modules and clicking the tickbox alongside it and choosing > Mark for specific version installation > 1.14.0 (as suggested by another user on this thread). Then clicking Apply. Once it downgraded numpy I stopped getting errors when running py files on the command line.
Throughout this saga, I was still able to use https://pypi.org/project/auto-py-to-exe/ even when I was getting the numpy errors on the command line, but it was a hassle to create an exe every time I wanted to test a change. It's all sorted now. I guess there was a problem with numpy 1.16.4.
Anyway, I hope this helps someone who's using Anaconda as well.
The following worked for me.
Deleted the folders for numpy and pandas together with their contents completely from the site-packages folder. Check depending on whether you are using python2 or python3. Check the exact path as per your machine.
N.B handle with care "rm -rf" command. If you are not sure of what you are doing, please do it manually using any file explorer of your choice!!
rm -rf ~/anaconda2/envs/myenv/lib/pythonX/site-packages/pandas*
rm -rf ~/anaconda2/envs/myenv/lib/pythonX/site-packages/numpy*
Then i installed clean packages for pandas and numpy as usual with
pip install numpy
pip install pandas
I've got the same error recently. Before applying uninstall or install tools, try to update your Jupyter.
How? Go to 'Environments' and type on the Search Packages box 'pandas'. Afterwards, check the version (if that column shows a blue number with a diagonal arrow, it means that your pandas is out of date). Click on 'pandas' and a option will pop up (choose 'Apply' and wait for a couple of minutes to update the package). And then, make a quick test on any notebook to make sure that your Jupyter is running smoothly.
For those who couldn't solve with the above answers:
Ensure that you are running python3 with
$ python version
If not, install python3.
Then change default python to python3 with
$ alias python=python3
Next, close your jupyter lab/notebook environment and re-launch it with default python being python3.
build_exe_options = {"packages": ["os",'pandas','numpy']}
It works.
you are running python 3.7
create environment for python 3.6
python3.6 filename.py
I have recently installed Anaconda with Python 3.5 and all the rest. I come from R where I am used to install packages dynamically. I am trying to install a module called scitools through jupyter notebook. I would like to recreate this in jupyter. However, I don't know how to dynamically install packages (if it's possible). I would greatly appreciate your help. Thank you!
EDIT: I am trying to use conda as recommended by the community, but it's not working. I am using mac OSX
Check Jake Vander Plus Blog here to learn how to install a package with pip from Jupyter Notebook.
# Install a pip package in the current Jupyter kernel
import sys
!{sys.executable} -m pip install numpy
So if you have already done the install with anaconda, you may already have the module installed. In that case in your jupyter notebook after you have activated your kernel, you just need to make sure you execute the import statement.
import scitools
If you haven't installed that module yet, you can install it one of two ways. Both work from your command line or terminal.
pip install scitools
or since you have Anaconda
conda install scitools
and that should do it. Your import statement in your notebook when executed should correctly locate and enable the use of that module.
I had the same issue. It turns out if you open an anaconda window, which in Windows is accessible under the Anaconda drop down, it points to the correct location to install (or update) using pip.
So I was looking around at different things to do on Python, like code for flashing text or a timer, but when I copied them into my window, there were constant syntax errors. Now, maybe you're not meant to copy them straight in, but one error I got was 'no module named wx'. I learned that I could get that module by installing wxPython. Problem is, I've tried all 4 options and none of them have worked for me. Which one do I download and how do I set it up using Windows?
Thanks
It's on PyPI. As of wxPython 4, Python 3 is supported.
Unfortunately, PyPI has a package called wx that is stuck at version 3.0.3; be sure to install the package named wxpython instead.
pip install wxpython
Please note that pip will automatically build wxWidgets for you, but it will not install wxWidgets system dependencies such as GTK and OpenGLu. If the above command exits with an error, look above for a message like this:
checking for <something>... not found
checking for <something>... no
configure: error: <prereq> libraries not available
Error running configure
ERROR: failed building widgets
This should give you information about at least one of the packages your system is missing.
The "official" list of prerequisites from the wxWidgets source is:
dpkg-dev
build-essential
libjpeg-dev
libtiff-dev
libsdl1.2-dev
libgstreamer-plugins-base0.10-dev # or 1.0 if available
libnotify-dev
freeglut3
freeglut3-dev
libsm-dev
libgtk-3-dev
libwebkitgtk-3.0-dev # or libwebkit2gtk-4.0-dev if available
libxtst-dev
The actual package names provided by your package manager may not match these exactly, and to be honest, I don't really know the best way to query a package manager to determine what packages provide the libraries you need.
3 steps to install wx-widgets and pygame in python IDLE
Install python 3xxx in your system opting (Add 3xxx to your path).
open python CLI to see whether python is working or not.
then open command prompt (CMD).
type PIP to see whether pip is installed or not.
enter command : pip install wheel
enter command : pip install pygame
To install wxpython
enter command : pip install -U wxPython
Thats all !!
As per home page instruction:
Make sure you have at least version 6.0.8 of pip and 12.0.5 for setuptools.
Install requirements for Linux as outlined in the readme.rst at:
https://github.com/wxWidgets/Phoenix/blob/master/README.rst
Install wxPython-Phoenix (Linux):
sudo pip install --upgrade --trusted-host wxpython.org --pre -f http://wxpython.org/Phoenix/snapshot-builds/ wxPython_Phoenix
Install wxPython-Phoenix (Windows, use the appropriate script folder):
C:\python27\scripts\pip.exe install --upgrade --trusted-host wxpython.org --pre -f http://wxpython.org/Phoenix/snapshot-builds/ wxPython_Phoenix
I installed wxPython as part of the PsychoPy experiment builder dependencies, and had considerable trouble getting it to install properly as well initially. But this was what worked for me at the end. I use Ubuntu 16.04, python 3.5, pip3 19.0.3
pip3 install -U -f https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-16.04 wxPython --user
If you use Conda then you may easily setup the environment with wx by one line:
$ conda create -n wxenv python=3 wxPython
Solving environment: done
## Package Plan ##
environment location: /home/user/.conda/envs/wxenv
added / updated specs:
- python=3
- wxpython
The following packages will be downloaded:
package | build
---------------------------|-----------------
[...]
Proceed ([y]/n)?
You need to ensure the versions of your wxPython download matches your installed python language library.
The current downloads wxPython downloads doesn't show any libraries built against python 3. I Believe the python 3 porting project is still ongoing.
If you are not sure of what you are doing I would stick with the 32bit version on windows as there are some Python libraries (ie IIRC, MySQLdb) which don't work with 64 bit python.
So you would then need to download python2.7 for windows x86 and "wxPython3.0-win32-py27 32-bit Python 2.7"
To install wxPython GUI library correctly go to the following page (https://wxpython.org/Phoenix/snapshot-builds/), which contains snapshots builds of wxPython library (Phoenix version) depending on your os and version of Python you want to work.
Then when you downloaded the proper package for your system and python version, simply install it by using pip. In my case I've choosen that one (wxPython_Phoenix-3.0.3.dev2811+ecc4797-cp36-cp36m-win_amd64.whl):
pip install wxPython_Phoenix-3.0.3.dev2811+ecc4797-cp36-cp36m-win_amd64.whl
To check that it has been installed sucessfully on the site-packages folder for your current python environment write:
pip freeze
It's all!
Check the version of wxpython and the version of python you have in your machine.
For python 2.7 use wxPython3.0-win32-3.0.2.0-py27 package
The problem was solved in openSuse simply with
zypper in python-wxWidgets-3_0-devel
Trying pip install before, gave me a lot of trouble (missing traits, missing wx/setup.h, https://github.com/wxWidgets/Phoenix/issues/1644, error: aggregate ‘wxGLAttributes _NullGLAttributes’ has incomplete type and cannot be defined, etc.).
wxpython failed to be installed with pipenv. Pipenv is not able to find wxpython binary so it tries to build wxpython but fails.
CXXFLAGS="-I/opt/homebrew/include" pipenv install wxpython
On my macOS M1 pipenv failed to install wxPython. After a lot of searching I found a forum post which really helped me fix the problem.
Source/Credits: https://forums.wxwidgets.org/viewtopic.php?t=47953&p=203709
Install current development version with:
pip install -U https://github.com/robotframework/RIDE/archive/master.zip
(python < 3.9) Install current Beta version (2.0b1) with:
pip install psutil
pip install -U --pre robotframework-ride
Note that I tried to install wxPython with 'pip install -U wxPython' as per instruction
with no avail. Too many errors to list here. 🤨
I found a solution to the problem!!
I'm working on a 64b machine and Windows 11 operating system using VSCode.
Here is the solution using PowerShell:
Version specs:
pip 22.3.1
virtualenv 20.15.1
python 3.10.8
Create a new virtual environment in the directory where the program resides and
activate. There must be no modules installed.
virtualenv venv
venv/scripts/activate.bat
Install the following in sequence:
pip install pygame
(Not sure why pygame must be installed first, but this was
recommended and it works) 😟
pip install -U wxPython
SUCCESS!!! 🤠
These are the modules installed:
numpy 1.24.1
Pillow 9.4.0
pip 22.3.1
pygame 2.1.2
setuptools 65.4.0
six 1.16.0
wheel 0.37.1
wxPython 4.2.0
VSCode still reports wx as a missing module even when you activate the virtual
environment within. Running the code from the PS command prompt within the virtual
environment is the only working solution.
PS. I am sure there are some conflicts when trying to install wxPython within an
environment where all the other modules are installed.
I wonder if it's possible to install python packages without leaving the IPython shell.
See the accepted answer from #Chronial which is the best way to do this in modern ipython or jupyter (as of 2018) is to use the %pip magic:
%pip install my_package
The answer below from 2011 is now outdated: See the accepted answer for an easier way to do this in modern jupyter.
You can use the ! prefix like this:
!pip install packagename
The ! prefix is a short-hand for the %sc command to run a shell command.
You can also use the !! prefix which is a short-hand for the %sx command to execute a shell command and capture its output (saved into the _ variable by default).
This answer is outdated: See the accepted answer for an easier way to this in modern jupyter.
aculich's answer will not work in all circumstances, for example:
If you installed ipython/jupyter in a venv and run it directly via the venv's python binary
If you have multiple python versions, like EntryLevelR.
The correct command is:
import sys
!{sys.executable} -m pip install requests
The best way to do this in modern ipython or jupyter is to use the %pip magic:
%pip install my_package
import pip
pip.main(['install', 'package_name'])
The above shell-based answers don't work unless pip is in your $PATH (e.g. on Windows).
I like hurfdurf's answer, but on its own iPython may not recognize the new module (especially if it adds to the library path). Here's an augmented example with iPython 3:
import pip
pip.main(['install','pygame'])
# import pygame at this point can report ImportError: No module named 'pygame'
import site
site.main()
# now with refreshed module path...
import pygame
In case you are using Conda Package Manager, the following syntax might fit your needs
$ conda install -c conda-forge <targetPackageName>
https://pypi.org/project/earthpy/
!pip install packagename or similar codes will not be the true answer if we have various python versions, where the desired python version is not the system default one. Such codes will install packages on the system default python version only. From my opinion, the following code would be helpful:
import pip
if int(pip.__version__.split('.')[0])>9:
from pip._internal import main
else:
from pip import main
main(['install', 'package_name']) # the strings in the square brackets could be specified as needed
This code is written based on pip version, which can be run from within the console and will be applied on any python versions which path is set by the console; This python version specs could be seen by import sys; sys.version, sys.path. I'm not sure this is the best approach, but the aforementioned code worked for my purposes and !pip install packagename or %pip install packagename did not (where python: 2.7.9, pip: 19.2.3, IPython QtConsole: 3.1.0).