stubgen produces UnicodeEncodeError and doesn't allow setting an encoding #11031
Description
Bug Report
Can't use stubgen in Windows if the source contains special characters not belonging to the current "code page".
To Reproduce
- In Windows, create a file
example.pywith UTF-8 encoding and the following contents:
def get_π():
return 3- Execute
stubgen -m example -o .
Expected Behavior
Should execute normally:
Processed 1 modules
Generated .\example.pyi
Actual Behavior
Error:
Traceback (most recent call last):
File "<env>\Scripts\stubgen-script.py", line 10, in <module>
sys.exit(main())
File "mypy\stubgen.py", line 1655, in main
File "mypy\stubgen.py", line 1533, in generate_stubs
File "mypy\stubgen.py", line 1489, in generate_stub_from_ast
File "<env>\lib\encodings\cp1252.py", line 19, in encode
return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u03c0' in position 8: character maps to <undefined>
Your Environment
- Mypy version used: 0.910
Notes
The problem seems to be this open here, without an encoding argument. Perhaps the encoding could be passed via command line argument, or via an environment variable?