using py3 on linux not working

[ewierschke]

Using either CentOS 6.9 or 7.3 with python34 installed from repo produces the following on watchmaker execution.

Traceback (most recent call last):
  File "/usr/bin/watchmaker", line 11, in <module>
    sys.exit(main())
  File "/usr/lib/python3.4/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3.4/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3.4/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3.4/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3.4/site-packages/watchmaker/cli.py", line 93, in main
    sys.exit(watchmaker_client.install())
  File "/usr/lib/python3.4/site-packages/watchmaker/__init__.py", line 415, in install
    workers_manager.worker_cadence()
  File "/usr/lib/python3.4/site-packages/watchmaker/managers/workers.py", line 27, in worker_cadence
    **configuration
  File "/usr/lib/python3.4/site-packages/watchmaker/workers/yum.py", line 43, in __init__
    self.dist_info = self.get_dist_info()
  File "/usr/lib/python3.4/site-packages/watchmaker/workers/yum.py", line 59, in get_dist_info
    with open(name='/etc/system-release', mode='rb') as fh_:
TypeError: Required argument 'file' (pos 1) not found

[KevinPlus3]

This does not sound like a Python issue - but rather an issue with opening /etc/system-release. Are you saying this is working fine in Python 2.*, but did not work fine with Python 3.*?

[KevinPlus3]

Adding comment from Loren as he has researched it - "It is a py3 issue. py3 switched the default open to io.open, which changed the name of the first argument from name in py2 to file."

[KevinPlus3]

Once this is addressed, then a new error pops up:

Traceback (most recent call last):
  File "/usr/bin/watchmaker", line 11, in <module>
    load_entry_point('watchmaker==0.4.5.dev0', 'console_scripts', 'watchmaker')()
  File "/usr/lib/python3.4/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3.4/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3.4/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3.4/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3.4/site-packages/watchmaker/cli.py", line 93, in main
    sys.exit(watchmaker_client.install())
  File "/usr/lib/python3.4/site-packages/watchmaker/__init__.py", line 415, in install
    workers_manager.worker_cadence()
  File "/usr/lib/python3.4/site-packages/watchmaker/managers/workers.py", line 27, in worker_cadence
    **configuration
  File "/usr/lib/python3.4/site-packages/watchmaker/workers/yum.py", line 43, in __init__
    self.dist_info = self.get_dist_info()
  File "/usr/lib/python3.4/site-packages/watchmaker/workers/yum.py", line 69, in get_dist_info
    matched = self.DIST_PATTERN.search(release.lower())
TypeError: can't use a string pattern on a bytes-like object

[KevinPlus3]

Gonna look into it and try to address it tonight.

[KevinPlus3]

With PR #323 and #324 , we can finally close this.