Windows is not passing command line arguments to Python programs executed from the shell
Solution 1:
I think I solved this. For some reason there is a SECOND place in the registry (besides that shown by the file associations stored in HKEY_CLASSES_ROOT\Python.File\shell\open\command):
[HKEY_CLASSES_ROOT\Applications\python.exe\shell\open\command]
@="\"C:\\Python25\\python.exe\" \"%1\" %*"
This seems to be the controlling setting on my system. The registry setting above adds the "%*" to pass all arguments to python.exe (it was missing in my registry for some reason).
Solution 2:
My setting was under yet another registry key, HKEY_CLASSES_ROOT\py_auto_file
. The other keys mentioned also existed, but Windows was using this one for some reason.
Solution 3:
For Python 3.3 on Windows 7, my setting was under another registry key; the key I changed to make the arguments get passed was
HKEY_USERS\S-1-5-21-3922133726-554333396-2662258059-1000_Classes\py_auto_file\shell\open\command
It was "C:\Python\Python33\python.exe" "%1"
. I only appended %*
to it. The key's value is now "C:\Python\Python33\python.exe" "%1" %*
.
I had several (at least five) other keys with the value "C:\Python\Python33\python.exe" "%1"
, but this is the one I changed that made it work.
Solution 4:
Here are .reg files to fix for Python 3.6, 2.7 and Anaconda3:
python-3.6.0.reg
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.py]
@="Python.File"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\.pyc]
@="Python.CompiledFile"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\.pyw]
@="Python.NoConFile"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\py_auto_file]
[HKEY_CLASSES_ROOT\py_auto_file\DefaultIcon]
@="C:\\Python36\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\py_auto_file\shell\open\command]
@="\"C:\\Python36\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.File]
@="Python File"
[HKEY_CLASSES_ROOT\Python.File\DefaultIcon]
@="C:\\Python36\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\Python.File\shell\open\command]
@="\"C:\\Python36\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.CompiledFile]
@="Compiled Python File"
[HKEY_CLASSES_ROOT\Python.CompiledFile\DefaultIcon]
@="C:\\Python36\\DLLs\\pyc.ico"
[HKEY_CLASSES_ROOT\Python.CompiledFile\shell\open\command]
@="\"C:\\Python36\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.NoConFile]
@="Python File (no console)"
[HKEY_CLASSES_ROOT\Python.NoConFile\DefaultIcon]
@="C:\\Python36\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\Python.NoConFile\shell\open\command]
@="\"C:\\Python36\\python.exe\" \"%1\" %*"
python-2.7.0.reg
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.py]
@="Python.File"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\.pyc]
@="Python.CompiledFile"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\.pyw]
@="Python.NoConFile"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\py_auto_file]
[HKEY_CLASSES_ROOT\py_auto_file\DefaultIcon]
@="C:\\Python27\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\py_auto_file\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.File]
@="Python File"
[HKEY_CLASSES_ROOT\Python.File\DefaultIcon]
@="C:\\Python27\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\Python.File\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.CompiledFile]
@="Compiled Python File"
[HKEY_CLASSES_ROOT\Python.CompiledFile\DefaultIcon]
@="C:\\Python27\\DLLs\\pyc.ico"
[HKEY_CLASSES_ROOT\Python.CompiledFile\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.NoConFile]
@="Python File (no console)"
[HKEY_CLASSES_ROOT\Python.NoConFile\DefaultIcon]
@="C:\\Python27\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\Python.NoConFile\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"
ananconda3.reg (change username)
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.py]
@="Python.File"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\.pyc]
@="Python.CompiledFile"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\.pyw]
@="Python.NoConFile"
"Content Type"="text/plain"
[HKEY_CLASSES_ROOT\py_auto_file]
[HKEY_CLASSES_ROOT\py_auto_file\DefaultIcon]
@="C:\\Users\\username\\Anaconda3\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\py_auto_file\shell\open\command]
@="\"C:\\Users\\username\\Anaconda3\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.File]
@="Python File"
[HKEY_CLASSES_ROOT\Python.File\DefaultIcon]
@="C:\\Users\\username\\Anaconda3\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\Python.File\shell\open\command]
@="\"C:\\Users\\username\\Anaconda3\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.CompiledFile]
@="Compiled Python File"
[HKEY_CLASSES_ROOT\Python.CompiledFile\DefaultIcon]
@="C:\\Users\\username\\Anaconda3\\DLLs\\pyc.ico"
[HKEY_CLASSES_ROOT\Python.CompiledFile\shell\open\command]
@="\"C:\\Users\\username\\Anaconda3\\python.exe\" \"%1\" %*"
[HKEY_CLASSES_ROOT\Python.NoConFile]
@="Python File (no console)"
[HKEY_CLASSES_ROOT\Python.NoConFile\DefaultIcon]
@="C:\\Users\\username\\Anaconda3\\DLLs\\py.ico"
[HKEY_CLASSES_ROOT\Python.NoConFile\shell\open\command]
@="\"C:\\Users\\username\\Anaconda3\\python.exe\" \"%1\" %*"