modify build_pyoptsparse.py work on windows 64 bit machine

[venkatgmrit05]

this script works for linux only and has issues working with windows 64 bit machine. Is this resolved elsewhere?

one of the issues faced :

the current env has python 11 32 bit

[tadkollar]

It looks like your screenshot truncated the actual error.

[venkatgmrit05]

hello. Thank you for replying. My bad.. her is the full error msg. this is beiung run with :

Python 3.11.0a1 (tags/v3.11.0a1:7c12e48, Oct 5 2021, 15:22:09) [MSC v.1929 32 bit (Intel)] on win32
this happens when i run the build_pyoptsparse.py in debug mode in vscode.

Prior to this error: the following modification was done as well: - to convert path to windows

this is the full error msg

this is the call stack:

[venkatgmrit05]

Hello. Did anyone have a chance to look at this? Thank you.

[tadkollar]

No, the script wasn't developed or tested in a native Windows environment. Though there are plans to do so eventually, it will be some time, weeks or months, before that happens. Additionally, it doesn't seem to be a superficial problem - it looks like it dies attempting to run the first script in the first package it attempts to compile.

Some possible workarounds in the meantime are:

• Install all of the packages with Anaconda if you can. They're available on conda-forge, though I can't for sure if builds exist for Windows.
• Install and run from the Cygwin environment, which provides many of the same tools and libraries available on Linux as well as the pathname convention. This will definitely make it easier to build the source packages.

[venkatgmrit05]

Unfortunately, We cannot use anaconda. conda-forge is fine but when we fire walled repo.anaconda , conda forge is not working as well. so installing pyoptspare with ipopt [which works just fine] is not an option for us.

When building from Cygwin environment, will it build the modules for windows os?

Must it be Cygwin? Can it be msys2?

Could you elaborate on "run it from Cygwin environment"? i am not familiar with this cross platform concepts (at all). pls forgive my ignorance. Thank you.

[MatthewRajan-WA]

Any update on Windows build? I seem to be getting the following error:

(was) PS C:\Users\matthew.rajan\pyoptsparse> build_pyoptsparse
Checking for conda-forge... WARNING: The conda-forge channel is not configured, cannot                         install conda packages. Falling back to building from source.
------------------------ Relevant environment variables -----------------------
CONDA_PREFIX: C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was
------- Testing build environment functionality. Can be skipped with -k. ------
Traceback (most recent call last):
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\Scripts\build_pyoptsparse.exe\__main__.py", line 7, in <module>
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\site-packages\build_pyoptsparse.py", line 1375, in perform_install
    finish_setup()
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\site-packages\build_pyoptsparse.py", line 1259, in finish_setup
    check_sanity()
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\site-packages\build_pyoptsparse.py", line 1160, in check_sanity
    print(f'Using {code(subst_env_for_path(opts["prefix"]))} for install prefix')
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\site-packages\build_pyoptsparse.py", line 376, in subst_env_for_path
    if testvar in os.environ and re.match(os.environ[testvar], path) is not None:
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\re.py", line 190, in match
    return _compile(pattern, flags).match(string)
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\re.py", line 303, in _compile
    p = sre_compile.compile(pattern, flags)
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\sre_compile.py", line 788, in compile
    p = sre_parse.parse(p, flags)
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\sre_parse.py", line 955, in parse
    p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\sre_parse.py", line 444, in _parse_sub
    itemsappend(_parse(source, state, verbose, nested + 1,
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\sre_parse.py", line 526, in _parse
    code = _escape(source, this, state)
  File "C:\Users\matthew.rajan\AppData\Local\anaconda3\envs\was\lib\sre_parse.py", line 382, in _escape
    raise source.error("incomplete escape %s" % escape, len(escape))
re.error: incomplete escape \U at position 2