pathutils error on extremely long paths in Windows

[guykisel]

Traceback (most recent call last):
  File "C:\Python27\Lib\runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "C:\Python27\Lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Users\gkisel\Envs\inline\Scripts\prospector.exe\__main__.py", line 9, in <module>
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\run.py", line 159, in main
    prospector.execute()
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\run.py", line 48, in execute
    self.config.explicit_file_mode, self.config.workdir)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 197, in find_python
    files, modules, directories, packages = _find_paths(ignores, paths[0], paths[0])
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 171, in _find_paths
    recurse = _find_paths(ignore, os.path.join(curpath, filename), rootpath)
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\finder.py", line 159, in _find_paths
    if is_virtualenv(fullpath):
  File "C:\Users\gkisel\Envs\inline\lib\site-packages\prospector\pathutils.py", line 11, in is_virtualenv
    dircontents = os.listdir(path)
WindowsError: [Error 3] The system cannot find the path specified: 'C:\\Users\\gkisel\\Documents\\inline-plz\\node_modules\\jscs\\node_modules\\babel-jscs\\node_modules\\babel-core\\node_modules\\regenerator\\node_modules\\defs\\node_mo
les\\yargs\\node_modules\\cliui\\node_modules\\right-align\\node_modules\\align-text\\node_modules\\repeat-string/*.*'

I believe the problem here might be that the path is near (or over) the Windows maximum path length. I think this might be fixable by wrapping this call: https://github.com/landscapeio/prospector/blob/master/prospector/pathutils.py#L11 with a try/except and just ignoring directories that have this problem.

This is probably pretty low priority to fix because I doubt most people are working in combined python/node.js projects.

I'd be happy to attempt a fix and submit a PR if you don't want to do it yourself :)

[guykisel]

Actually just noticed this looks very similar to #159

[carlio]

🍰 awesome.