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I had python 2.7 before and then I installed python 3.4.The OS is windows 10
I have renamed
C:\python27\python.exe to python2.exe (when I run python2 --version it shows correct version)
and
C:\python34\python.exe to python3.exe (when I run python3 --version it shows correct version)
I have set the path variable manually and there is no space etc.
I was trying to create a virtual environment and assign python34 to this new environment. I was going through this SO reference -- Using VirtualEnv with multiple Python versions on windows
prompt>> virtualenv -p c:\Python34\python3.exe casenv
But I got an error--
Fatal error in launcher: Unable to create process using '"'
Do I need to install virtualenv again for python34 or somewhere I need to set virtualenv path for each python installation.
Any help is highly welcomed.
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How do I fix fatal error in launcher pip? downloading Python 3 at the official website and installing it via express installation. Copy & Paste the standalone python into the ampps/python folder and overwriting the python version provided by AMPPS. running python -m pip install –upgrade pip in cmd.
How do you fix fatal error in launcher unable to create process using the system Cannot find the file specified? Or, fix it completely: Try to run python3 -m pip install –upgrade pip in cmd. If failed in step 1, try python3 -m pip install –upgrade –force-reinstall pip.
Step 1: Download the get-pip.py (https://bootstrap.pypa.io/get-pip.py) file and store it in the same directory as python is installed. Step 2: Change the current path of the directory in the command line to the path of the directory where the above file exists. Step 4: Now wait through the installation process. Voila!
To check if PIP is already installed on Windows, we should open the command line again, type pip , and press Enter . If PIP is installed, we will receive a long notification explaining the program usage, all the available commands and options.
In my case, i had installed python 3.6 and uninstalled python 2.7 when i got this error. Completely deleting the C:\Python2.7 directory did the trick.
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