Posts: 19
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Joined: Jul 2020
Hello i need a bit of help converting something created for python2 to work with python3.
here is what i need converting.
https://github.com/martinr1000/AliensMotionTracker
Can anyone convert this to work with python3
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Have you tried running it through 2to3?
Posts: 19
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Joined: Jul 2020
(Jul-15-2020, 03:15 PM)bowlofred Wrote: Have you tried running it through 2to3?
I have no idea how to use 2to3.
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Then try reading the documentation in the link provided.
Posts: 19
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I did try but just did not understand anything.
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Make a copy of your program and run 2to3 on it with the -w flag. It will change the copy and you can try to run it. If you get output that you don't understand, you can ask about it here.
Posts: 19
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Joined: Jul 2020
I think i done it but it dose show lots of errors.
Quote: 2to3 -w /home/pi/tracker
RefactoringTool: Skipping optional fixer: buffer
RefactoringTool: Skipping optional fixer: idioms
RefactoringTool: Skipping optional fixer: set_literal
RefactoringTool: Skipping optional fixer: ws_comma
RefactoringTool: No changes to /home/pi/tracker/audio.py
RefactoringTool: No changes to /home/pi/tracker/calibration.py
RefactoringTool: No changes to /home/pi/tracker/calibrationGraphics.py
RefactoringTool: No changes to /home/pi/tracker/compass.py
RefactoringTool: No changes to /home/pi/tracker/contacts.py
RefactoringTool: No changes to /home/pi/tracker/graphics.py
RefactoringTool: No changes to /home/pi/tracker/main.py
RefactoringTool: Refactored /home/pi/tracker/pyscope.py
--- /home/pi/tracker/pyscope.py (original)
+++ /home/pi/tracker/pyscope.py (refactored)
@@ -24,7 +24,7 @@
try:
pygame.display.init()
except pygame.error:
- print 'Driver: {0} failed.'.format(driver)
+ print('Driver: {0} failed.'.format(driver))
continue
found = True
break
RefactoringTool: Can't rename /home/pi/tracker/pyscope.py to /home/pi/tracker/py scope.py.bak
RefactoringTool: Can't create /home/pi/tracker/pyscope.py: [Errno 13] Permission denied: '/home/pi/tracker/pyscope.py'
Traceback (most recent call last):
File "/usr/bin/2to3", line 5, in <module>
sys.exit(main("lib2to3.fixes"))
File "/usr/lib/python3.7/lib2to3/main.py", line 259, in main
options.processes)
File "/usr/lib/python3.7/lib2to3/refactor.py", line 687, in refactor
items, write, doctests_only)
File "/usr/lib/python3.7/lib2to3/refactor.py", line 280, in refactor
self.refactor_dir(dir_or_file, write, doctests_only)
File "/usr/lib/python3.7/lib2to3/refactor.py", line 300, in refactor_dir
self.refactor_file(fullname, write, doctests_only)
File "/usr/lib/python3.7/lib2to3/refactor.py", line 728, in refactor_file
*args, **kwargs)
File "/usr/lib/python3.7/lib2to3/refactor.py", line 339, in refactor_file
write=write, encoding=encoding)
File "/usr/lib/python3.7/lib2to3/refactor.py", line 505, in processed_file
self.write_file(new_text, filename, old_text, encoding)
File "/usr/lib/python3.7/lib2to3/main.py", line 103, in write_file
shutil.copymode(backup, filename)
File "/usr/lib/python3.7/shutil.py", line 143, in copymode
st = stat_func(src)
FileNotFoundError: [Errno 2] No such file or directory: '/home/pi/tracker/pyscop e.py.bak'
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Is the filesystem writable? Are you running 2to3 as the right user (i.e. one who has write permissions for that directory)?
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Jul-16-2020, 06:02 AM
(This post was last modified: Jul-16-2020, 06:53 AM by corsasri.)
I have logged in as pi. So how do I get write permission? I’m new to this and old.
So I should use sudo 2to3.
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You shouldn't need to use sudo. Can you show the output of ls -l /home/pi/tracker?
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