[win64] UnicodeEncodeError when printing error message

Over in https://github.com/conda-forge/torchsde-feedstock/pull/2 I was trying to use the new build_with_mambabuild capability to debug dependency issues.

Unfortunately when printing the error message I’m hitting a UnicodeEncodeError

Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... done
D:/bld/win-64             
D:/bld/noarch             
Transaction

  Prefix: C:\Miniconda

  Updating specs:

   - vs2017_win-64==19.16.27038=h2e3bad8_2
   - vswhere==2.8.4=h57928b3_0


Traceback (most recent call last):
  File "C:\Miniconda\Scripts\conda-mambabuild-script.py", line 10, in <module>
    sys.exit(main())
  File "C:\Miniconda\lib\site-packages\boa\cli\mambabuild.py", line 140, in main
    call_conda_build(action, config)
  File "C:\Miniconda\lib\site-packages\boa\cli\mambabuild.py", line 125, in call_conda_build
    **kwargs,
  File "C:\Miniconda\lib\site-packages\conda_build\api.py", line 195, in build
    variants=variants
  File "C:\Miniconda\lib\site-packages\conda_build\build.py", line 3073, in build_tree
    notest=notest,
  File "C:\Miniconda\lib\site-packages\conda_build\build.py", line 2108, in build
    create_build_envs(top_level_pkg, notest)
  File "C:\Miniconda\lib\site-packages\conda_build\build.py", line 1976, in create_build_envs
    channel_urls=tuple(m.config.channel_urls))
  File "C:\Miniconda\lib\site-packages\boa\cli\mambabuild.py", line 68, in mamba_get_install_actions
    solution = solver.solve_for_action(_specs, prefix)
  File "C:\Miniconda\lib\site-packages\boa\core\solver.py", line 193, in solve_for_action
    t = self.solve(specs)
  File "C:\Miniconda\lib\site-packages\boa\core\solver.py", line 185, in solve
    print(error_string)
  File "C:\Miniconda\lib\site-packages\colorama\ansitowin32.py", line 41, in write
    self.__convertor.write(text)
  File "C:\Miniconda\lib\site-packages\colorama\ansitowin32.py", line 162, in write
    self.write_and_convert(text)
  File "C:\Miniconda\lib\site-packages\colorama\ansitowin32.py", line 190, in write_and_convert
    self.write_plain_text(text, cursor, len(text))
  File "C:\Miniconda\lib\site-packages\colorama\ansitowin32.py", line 195, in write_plain_text
    self.wrapped.write(text[start:end])
  File "C:\Miniconda\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 '\u21df' in position 313: character maps to <undefined>
  Package            Version  Build       Channel                  Size
-------------------------------------------------------------------------
  Install:
-------------------------------------------------------------------------

  vs2017_win-64  19.16.27038  h2e3bad8_2  conda-forge/win-64     Cached
  vswhere              2.8.4  h57928b3_0  conda-forge/win-64     236 KB

  Summary:

  Install: 2 packages

  Total download: 236 KB

-------------------------------------------------------------------------

D:/bld/win-64             
D:/bld/noarch             
##[error]Cmd.exe exited with code '1'.

https://dev.azure.com/conda-forge/feedstock-builds/_build/results?buildId=282278&view=logs&j=00f5923e-fdef-5026-5091-0d5a0b3d5a2c&t=3cc4a9ed-60e1-5810-6eb3-5f9cd4a26dba

[wolfv]

It turns out there is actually a weird character there 🤦

This one: ⇟ … sorry for that. I will release boa today 😃

[dhirschfeld]

No rush - no great urgency on my part.