[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Changes by Steve Dower :


--
resolution:  -> not a bug
status: open -> closed

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Thank you so much! This solved it.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Eryk Sun]

Eryk Sun added the comment:

openwithidle_for_frostyelsa.reg adds an open command for the current user that 
opens the target file in IDLE. This will take precedence over the per-machine 
open command that executes the file using the launcher. 

It also adds "Run" and "Run as administrator" commands to execute the file 
using the launcher.

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Added file: http://bugs.python.org/file45994/openwithidle_for_frostyelsa.reg

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Before re-installing Windows 10, I was able to open up all my .py files  by 
double-clicking on them and it would open them up in the IDLE (where I could 
edit the code manually and what have you). I'm not sure why it's never been a 
feature: I was doing that for many months.

--
Added file: http://bugs.python.org/file45993/double clicking on .py should show 
this.PNG

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Eryk Sun]

Eryk Sun added the comment:

> I want this to be a regular installation of Python wherein I can 
> associate .py files with IDLE

That isn't a regular installation. It's not even an optional configuration, and 
never has been. You'd have to set that up manually. Are you looking to [-r]un 
files in IDLE by double clicking on them, or simply open them in the editor?

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Eryk Sun]

Eryk Sun added the comment:

> I did that, and now all the options are gone.

Removing the broken HKLM entry shouldn't have removed all of the options. The 
"Edit with IDLE" menu should be there as long as Python.File is selected for 
the file association. It's defined for the current user on your system, under 
the following key:

HKCU\SOFTWARE\Classes\Python.File\Shell\editwithidle

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Also, just to clarify, I want this to be a regular installation of Python 
wherein I can associate .py files with IDLE (i.e. when I double click on a .py 
file, it takes me straight to the code) *as well as* having the option to "Edit 
with IDLE" when right-clicking on a .py file. For some reason, on this machine, 
I'm not able to replicate the same installation as on my other Windows machine 
not matter how much I try.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Also, just to clarify, I want this to be a regular installation of Python 
wherein I can associate .py files with IDLE (i.e. when I double click on a .py 
file, it takes me straight to the code) *as well as* having the option to "Edit 
with IDLE" when right-clicking on a .py file. For some reason, on this machine, 
I'm not able to replicate the same installation as on my other Windows machine 
not matter how much I try.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

I did that, and now all the options are gone.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Eryk Sun]

Eryk Sun added the comment:

To remove the broken "Edit with IDLE" entry, open an elevated (administrator) 
command prompt and run the following:

reg delete "HKLM\SOFTWARE\Classes\Python.File\shell\Edit with IDLE" /f

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Following your instructions on key deletion, I have now 2 "Edit with IDLE" 
options now. The top one does *not* work. The second one, however, does work. 
But when I tried to associate the .py with idle (so it opens up in IDLE) it 
reverted back to the command-line run of the .py file and eliminated the "Edit 
with IDLE" options from the right-click menu. Very odd. 

Thank you so much for staying with this issue.

--
Added file: http://bugs.python.org/file45992/progress so far.png

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Couple things to note: I was not able to delete a couple of the keys. 
Regardless I've made some progress which I will outline in the next comment.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Eryk Sun]

Eryk Sun added the comment:

Let's do a bit of house cleaning. Run the following commands in a command 
prompt:

reg delete HKCU\SOFTWARE\Classes\.py /f
reg delete HKCU\SOFTWARE\Classes\py_auto_file /f
reg delete HKCU\SOFTWARE\Classes\Applications\python.exe /f
reg delete HKCU\SOFTWARE\Classes\Applications\py.exe /f
reg delete 
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.py /f

HKCU\SOFTWARE\Classes\.py is selecting the PyCharm2016.3 ProgId. This takes 
precedence over HKLM\SOFTWARE\Classes\.py, the key that selects Python.File. I 
expect this causes Explorer to automatically reselect the PyCharm2016.3 ProgId. 
Deleting it in combination with deleting "...\Explorer\FileExts\.py" may fix 
the problem, i.e. restore the Edit with IDLE menu.

The "...\Applications\python.exe" and "...\Applications\py.exe" keys were 
created by manually associating with the given executable. Note how the open 
commands have the script path (%1) but no command-line arguments (%*). It's 
harmless to delete these keys.

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nosy: +eryksun

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Couple things: I installed PyCharm after all other options where exhausted. I 
needed to do some work on multiple projects. 

And also, I deleted .py key and it still doesn't show up. I tried associating 
it with idle.pyw and that didn't work either: Windows said it can't run that on 
my PC.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Steve Dower added the comment:

It looks like PyCharm has taken over your shortcut:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.py\UserChoice
HashREG_SZ55jxudRhknE=
ProgIdREG_SZPyCharm2016.3

If you delete the entire "FileExts\.py" key with registry editor then it should 
reset back to either our launcher, or give you the ability to choose.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Thank you for your help. Attached is the py_config.txt that your .bat file gave 
me.

--
Added file: http://bugs.python.org/file45991/py_config.txt

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Eryk Sun]

Changes by Eryk Sun :


Added file: http://bugs.python.org/file45989/dump_py_config.bat

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[eryk sun]

Changes by eryk sun :


Removed file: http://bugs.python.org/file45988/dump_py_config.bat

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[eryk sun]

eryk sun added the comment:

There are many possible points of failure, so I'd like to get a clearer picture 
of your system configuration. Please download and run the attached batch file 
"dump_py_config.bat" and upload the "py_config.txt" file that it creates.

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Added file: http://bugs.python.org/file45988/dump_py_config.bat

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Yes, I have IDLE installed, and Launcher is installed as well. I can open up 
IDLE from the shortcut, however I am not able to access it within "Open With" 
or "Default Programs" or "Change" (within Properties). I _can_ open up the file 
only if I open up IDLE first then click "File" and then "Open" of the .py file 
in question. But the process of doing that compared to just double-clicking the 
IDLE-associated .py file is enormous and a workaround I'm trying to avoid. 

I've done steps 1-4 on a clean installation however there is one thing missing: 
the Python Launcher. It does not appear in the list of programs to choose. I 
tried everything up to and including idle.bat. But I'm not going to use 
idle.bat, that is a workaround I'm also trying to avoid. I just want a correct 
installation. I think it has something to do with my OS preventing the Python 
Installer from tinkering with the "Open With" options. 

The original shortcut for a clean installation for me is the python run command 
in the command-prompt. I need to able to see the code in IDLE when I double 
click on a .py file. 

Thank you for your help.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Steve Dower added the comment:

But you definitely have idle installed, right? The commands earlier made an 
assumption about your installation that could be wrong, so that would explain 
it.

I'm still not entirely clear whether you've done these steps yet:

1. Right-click a .py file and select Open With
1a. If this gives you a deeper menu, select Another App
2. Find the Python launcher in the window that appears and select it.
3. Select Always Open with this app check box
4. Click Open/ok/whatever button is on there

That should reset your personal customization back to the original shortcut.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Also, I created a reg file with the commands in a txt file and when I merged 
it, it was able to show the "Edit with IDLE" but it would do nothing. IDLE 
isn't there. Very perplexing.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

So I tried changing it to py.exe, and it doesn't load the IDLE: instead, it 
opens up the run command for the program in command prompt. That's not what I 
want it to do. Also, there still is no Edit With IDLE option. And I tried doing 
the ProgID stuff, but none of it worked even after repairing/uninstalling, etc. 

I'm kind of hopeless at this point. Thank you everyone for helping.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[eryk sun]

eryk sun added the comment:

> There's no reason to for IDLE to be a system-level association if 
> the user has not chosen the association

Ok, to clarify, SystemFileAssociations can be defined in either the system or 
user hive. It's fine if the IDLE menu is added this way when it's done just for 
the current user (perhaps with an addition option in the installer). The 
problem is setting it in the system hive for a per-machine install because an 
individual user won't be able to disable the menu.

> I'd rather figure out adding an "Open With" entry for IDLE

As you've suggested before, that requires bundling an idle.exe launcher.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Steve Dower added the comment:

> Steve, you could move the "Edit with IDLE" menu out of the Python.File ProgId 
> to an entry defined in SystemFileAssociations.

I could, but I don't want to. I'd rather figure out adding an "Open With" entry 
for IDLE.

There's no reason to for IDLE to be a system-level association if the user has 
not chosen the association, just as I'd expect any text editor to be opt-in.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[eryk sun]

eryk sun added the comment:

When you change the association for executing scripts (either via Default 
Programs or the Open with => Choose another app menu), do not "look for another 
app on this PC". Manually associating files with an executable such as py.exe 
creates a ProgId that's only meant for opening data files, i.e. there's no "%*" 
in the template to pass command-line arguments. (Microsoft should provide an 
option here to support passing command-line arguments.)

You have to select "Python" in the listed applications. Explorer lists them 
only by name and icon. There may be multiple entries named "Python". The one 
you're looking for should have a rocket on the icon because it opens using the 
py.exe launcher. Hopefully this should be for the "Python.File" ProgId that's 
configured by Python's installer. 

If switching to it doesn't add the IDLE menu, first confirm that the "ProgId" 
value is "Python.File" in the user choice registry key at the following path: 
"HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.py\UserChoice".
 If not, pick a different "Python" app from the list until the user choice is 
"Python.File". (Microsoft should provide an advanced way to select a ProgId 
explicitly. They took away the ability to edit the UserChoice key, which is 
fine, but they failed to provide an advanced alternative to the dumbed-down app 
list, which is hostile to both power users and developers.) If no entry sets 
the user choice to "Python.File" or if it's set to "Python.File" and there's no 
IDLE menu, then maybe the ProgId itself has been modified or deleted. Try 
repairing your Python installation to fix this.

Steve, you could move the "Edit with IDLE" menu out of the Python.File ProgId 
to an entry defined in SystemFileAssociations. This should normally be 
available regardless of the application the user associates with .py files. 
Here's an example .reg file to add this for a system install of 64-bit 3.5:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.py]

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.py\shell]


[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.py\shell\editwithidle]
"MUIVerb"=" with IDLE"
"Subcommands"=""


[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.py\shell\editwithidle\shell]


[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.py\shell\editwithidle\shell\edit35]
"MUIVerb"="Edit with IDLE 3.5 (64-bit)"


[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.py\shell\editwithidle\shell\edit35\command]
@="\"C:\\Program Files\\Python35\\pythonw.exe\" -m idlelib \"%1\" %*"

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Steve Dower added the comment:

C:\Windows\py.exe (probably. If you changed from the default options it may be 
elsewhere, but if you Open With on a .py file it should be there)

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

Thanks for the help Steve, however I cannot find the Python Launcher app 
anywhere on my computer. Even after repairing/reinstalling. Where might I find 
this file? What is it called exactly? Much appreciated.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Steve Dower added the comment:

The Python launcher is the right app to select. Double-clicking .py files has 
always run them with the interpreter, but you will also get the right-click 
menu once they are associated with the launcher (this is what I meant by it 
being the single integration point).

There has never been a time when double-clicking a .py file has opened in IDLE 
by default after installing any release from python.org. Associating with 
idle.bat is the best way to achieve this as we do not include any other 
launcher (and we don't support using idle.bat either, though it should work and 
we'll try and help you if it doesn't, but it's not a core scenario for the main 
distribution).

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David]

David added the comment:

I'm going to tackle the questions one-by-one: 

I would like these ".py" files to be IDLE files in the sense that they have the 
IDLE icon and they open up directly into an idle file with a shell in the 
background. For context: on my other Windows 10 machine, I've been able to 
amass a semester's worth of ".py" that are all opened by, and have the icon of, 
IDLE. 

I have tried to manually associate the ".py" in the "default programs" app with 
the IDLE application shortcut but to no avail. Instead of opening in IDLE it 
opens in the command line format (that black python icon). So basically it 
opens up for a fraction of a second and then closes. No bueno. 

I have tried repairing, installing and reinstalling Python on my machine all 
with the appropriate settings (and launcher included in all of those tries). No 
dice. Still no right-click context menu. Still no ability to have ".py" files 
open up with IDLE. 

Note: I _have_ been able to associate the ".py" extension with "idle.bat" -- 
this works. But that's not an acceptable workaround. There is something deeper 
wrong here that I cannot pinpoint. Is it in my installer? I have no idea. I've 
tried most everything...

Including deleting the UserChoice key/folder/whatever it is and still nothing 
producing. I even tried "idle.exe" but Windows 10 gives me the error: "This app 
can't run on your PC -- to find a version for your PC, contact the software 
publisher." Just great. 

There are no error messages on any install/reinstall/repair that I've managed 
to try. Everything goes smoothly from start to finish. But the product is 
broken. 

In addition: I've never programmed in 2.7 and have never installed it on my 
computer. All of my Python knowledge is based in 3.5.2: it was for a 
semester-long course. So even the repair that I did run (which didn't work) 
wouldn't be accounting for any potential conflicts with 2.7. 

Furthermore, I was not able to find a python rocket icon in my files even with 
hidden items in view so I was not able to complete the ".py" and 
".pythonrocketapp" association. However, I did notice in my 
program/applications folder that Python Launcher was indeed installed on my 
computer at the very least. 

This is absolutely perplexing and I appreciate all of your help in 
troubleshooting this. Thank you, and Merry Christmas.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Terry J. Reedy]

Terry J. Reedy added the comment:

Here is another possible reason (and cure) for intentionally installed  python 
to not work.  Just posted to Python list.

"Turns out that another instance of Python *was* installed, not as part of OEM 
software, but by a digital camera (Califone) that is being used in some of our 
classrooms.  The suggestion to look for environmental variables was the key  -  
on the PCs where we were having the problem, there was a variable starting with 
PYTHON ... which pointed to the camera software.  Once the camera was 
uninstalled, Python 3.5.2 worked just fine."

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[eryk sun]

eryk sun added the comment:

It looks like you've accidentally created and selected an auto-generated 
association between .py and python.exe. You should be able to restore the 
original file association to get the "Edit with IDLE" menu back. In Windows 10 
the "open with" menu has an option to "choose another app". In the dialog 
select "always use this app to open .py files". Or go to the control panel's 
"default programs" app, and choose "associate a file type" and double click on 
".py" in the list. Either way, select the "Python" entry with a rocket on the 
icon. Hopefully this selects the "Python.File" ProgId that was configured by 
Python's installer.

What we're trying to do here is modify the contents of the registry key 
"HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.py\UserChoice".
 Python's installer doesn't have anything to do with this key. It's based on 
what the user selects in Explorer, and it's intentionally difficult for code to 
directly modify this key. It's protected by an access control entry that denies 
the user (i.e. programs running as the user) the right to modify the key 
directly, plus a hash of the user's selection. But one thing you can still do 
is to delete the key, which will restore the default user and system file 
association.

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nosy: +eryk sun

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Steve Dower]

Steve Dower added the comment:

I'm not familiar with any of the other proposed solutions - could you link to a 
few?

One important factor is that you need to install the Python Launcher to get the 
context menus (this is the default in 3.5 and later). Associating directly to 
the Python installation just causes conflicts when you install another version, 
so we set them up via the launcher instead. In effect, the launcher is the 
integration point between Windows Explorer and Python, and without it you only 
get the shortcuts.

Installing Python 2.7 and leaving the "Register Extensions" option selected 
will overwrite the context menu from Python 3.5 or later. So if you've 
installed 2.7 after 3.5 then I would strongly recommend running a Repair of 3.5.

Otherwise, answers to Terry's questions would also be helpful. It isn't 
entirely clear how you are "choos[ing] the IDLE application", or if the 
installations were successful.

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[Terry J. Reedy]

Terry J. Reedy added the comment:

.py files are not 'IDLE based', even if edited with IDLE.  They are Python 
files and should normally be registered to run with Python directly, and not 
via IDLE.

The right click context menu *should* include "Edit with IDLE".  I have 
re-marked this issue for that problem, though I believe there is another issue 
about this.  I have Win 10 also and I have "Edit with IDLE >" which open 
submenu containing "Edit with IDLE 3.5 (64 bit)" and "Edit with IDLE 3.6 (64 
bit)".  This is a Windows installer issue, not an IDLE issue per se.

I don't understand "And when I try to choose the IDLE application, it just 
defaults to the command line version every time".  If you mean that clicking 
the IDLE entry in the start menu brings up console Python, then something went 
wrong in your installation process.  Have you tried re-installing?  Are there 
any error messages while installing?

--
assignee: terry.reedy -> 
components: +Installation, Windows -IDLE
nosy: +paul.moore, steve.dower, tim.golden, zach.ware

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[issue29014] Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10

[David Karimi]

New submission from David Karimi:

"Edit with IDLE" option is also not present in my installation when I 
right-click on a .py file. And when I try to choose the IDLE application, it 
just defaults to the command line version every time. I don't know why this 
happens. I was able to run it fine on my Windows 7 and it recognized all my .py 
student files as IDLE-based which is exactly what I want: to see them in a 
script editing environment. 

Any help would be appreciated. All the proposed solutions online haven't helped.

--
assignee: terry.reedy
components: IDLE
messages: 283606
nosy: frostyelsa, terry.reedy
priority: normal
severity: normal
status: open
title: Python 3.5.2 installer doesn't register IDLE .py extensions on Windows 10
type: behavior
versions: Python 3.5

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