This is the problem right here, do you have any advice for that?
installed pip and pyinstaller, but still got this error message when I tried to convert my project into an .exe.
From Pyinstaller installation guide:
If you cannot use the pyinstaller command due to the scripts directory not being in PATH, you can instead invoke the PyInstaller module, by running python -m PyInstaller (pay attention to the module name, which is case sensitive). This form of invocation is also useful when you have PyInstaller installed in multiple python environments, and you cannot be sure from which installation the pyinstaller command will be ran.
So you may run it as e.g.:
python -m PyInstaller some_system.py
Or, as the issue seems that PATH Windows environment variable doesn't include Python's Script folder, it'd better to fix it. From the same guide:
If the command is not found, make sure the execution path includes the proper directory:
Windows: C:\PythonXY\Scripts where XY stands for the major and minor Python version number, for example C:\Python38\Scripts for Python 3.8)
To fix you may run where python to get exact location of Python on your machine (let's say it shows C:\Python38\). Then add to PATH env variable Scripts folder inside it (in this example it'd be C:\Python38\Scripts\)
I use the Coderunner 3.0 application on my mac for all of my python coding. I don't know how to import any libraries to it and when writing sys.executable in Coderunner it prints /usr/bin/python3. I want to use the version of Python I have from anaconda which is in /Users/myuser/anaconda3/bin but when putting that in the run command nothing changed. Does anyone know how to do this?
python3 $filename anaconda/bin is what I tried using
and when I just enter
Users/myuser/anaconda3/bin in the run command it says Users/myuser/anaconda3/bin is a directory
As described on the CodeRunner support page, the syntax for the run command is essentially:
/path/to/interpreter $filename
So if Anaconda is located at /Users/myuser/anaconda3/bin, the correct command would be:
/Users/myuser/anaconda3/bin/python3 $filename
I installed Python 3.6 on my computer(windows 10) and it works(plz refer to the right on the screenshot. But it cannot work on Atom.(plz refer left on the screenshot).
I have downloaded script packages and added python path in environment variables settings;However, it still does not work.The error message shown below is garbled(labelled as red in the screenshot) so there is no clue for me to presume what might happen. Can somebody suggest me how else can I try to solve the problem? Thanks!!
If you are trying to run a script in atom, using the script module, make sure the first line of your script is #!path_to_python_interpreter.
When I do this the script will run using whichever version of python I enter on line 1.
I have two virtual environments on my Mac to run either python 2.7.13 or python 3.6. If I activate the 3.6 environment, and then run Atom from the command line, Atom will use whichever version of python that was activated.
I am using Windows 10, and I have python 2.7 and 3.6 installed. I want to open a .py file in IDLE 3.6, but when I try to open it, it opens in 2.7. How can I change the default?
To make the python-2x or python-3x as default python IDLE, you need to change the environment variable, if you define the path for n versions of python, you will be able to use that particular version by typing that version in cmd.
See the superuser answer here for step by step instruction
There are different versions of IDLE installed for each Python version. Depending on how you installed Python on Mac OS X, you may find different folders in /Applications. Look for a Python 3.n (n = 1 or 2) folder with an IDLE in it. Or, from a terminal command line, you may find an idle2.6 and an idle3 or idle3.1 or idle3.2.
https://stackoverflow.com/a/4776403/3900156
I am using Python 3.5.2 version on Windows 7 and tried using python3 app.py. I am getting this error message:
'python3' is not recognized as an internal or external command,
operable program or batch file.
Is there any specific cause about why the python3 command is not working?
I also verified that the PATH is added to environment variables.
There is no python3.exe file, that is why it fails.
Try:
py
instead.
py is just a launcher for python.exe. If you have more than one python versions installed on your machine (2.x, 3.x) you can specify what version of python to launch by
py -2 or
py -3
You can also try this:
Go to the path where Python is installed in your system. For me it was something like C:\Users\\Local Settings\Application Data\Programs\Python\Python37
In this folder, you'll find a python executable. Just create a duplicate and rename it to python3. Works every time.
Python3.exe is not defined in windows
Specify the path for required version of python when you need to used it by creating virtual environment for your project
Python 3
virtualenv --python=C:\PATH_TO_PYTHON\python.exe environment
Python2
virtualenv --python=C:\PATH_TO_PYTHON\python.exe environment
then activate the environment using
.\environment\Scripts\activate.ps1
Yes, I think for Windows users you need to change all the python3 calls to python to solve your original error. This change will run the Python version set in your current environment. If you need to keep this call as it is (aka python3) because you are working in cross-platform or for any other reason, then a work around is to create a soft link. To create it, go to the folder that contains the Python executable and create the link. For example, this worked in my case in Windows 10 using mklink:
cd C:\Python3
mklink python3.exe python.exe
Use a (soft) symbolic link in Linux:
cd /usr/bin/python3
ln -s python.exe python3.exe
In my case I have a git hook on commit, specified by admin. So it was not very convenient for me to change the script (with python3 calls).
And the simplest workaround was just to copy python.exe to python3.exe.
Now I could launch both python and python3.
If python2 is not installed on your computer, you can try with just python instead of python3
For Python 27
virtualenv -p C:\Python27\python.exe django_concurrent_env
For Pyton36
virtualenv -p C:\Python36\python.exe django_concurrent_env
Enter the command to start up the server in that directory:
py -3.7 -m http.server
I had a related issue after installing windows 11, where python3 in cmd would open the windows store. I was able to sort it out between this post and this other one. In short, I reinstalled python and made sure to add it to PATH. Then, in settings, Apps > Apps & Features > App Execution aliases. Here, all I had to do was make sure that every single python .exe (including idle and pip) were turned off EXCEPT FOR the python3.exe alias. Now it works like a charm.
FWIW:
The root of this issue is not with you or with python. Apparently, Microsoft wanted to make installing python easier for young kiddos getting interested in coding, so they automatically add an executable to PATH. For those of us that already have this executable, it can cause these issues.
Found out instead press the play button the top right and it should work in visual studios:
Do not disable according to first answer
Saying python3 in the command will not work by default.
After figuring out the problem with the modules (Solution): https://youtu.be/paRXeLurjE4
Summary:
To import python modules in case of problem to import modules:
Hover over python in search:
Click open in folder
Hover over and right click
click properties
copy everything in path before \python.exe
close those windows
For cmd (administrator):
cd --path that was copied--
then python -m pip install --upgrade pip
cd Scripts
pip install "Name of Package" such as pip install --module (package) --
Im on win10 and have 3.7, 3.8 and 3.10 installed.
For me "python" launches version 3.10 and does not accept commands (like -3.7), "py" launches newest version but does accept commands, and "python3" does nothing.
Uninstalled 3.10 and "python" now does nothing, and "py" launches 3.8.
I am unable to add a comment, but the mlink option presented in this answer above https://stackoverflow.com/a/55229666/8441472 by #Stanislav preserves cross-platform shebangs at the top of scripts (#!/usr/bin/env python3) and launches the right python.
(Even if you install python from python.org, Windows will direct you to the app marketplace nowadays if you type python3 on the command line. If you type python on the same cli it will launch the python.org version repl. It leads to scripts that generate no output, but more likely silently failed completely. I don't know ho common this is but have experienced it on a couple of different devices)
If you have this at the top of your script to ensure you launch python3 and don't feel like editing everything you own, it is not a bad approach at all... lol.