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Python 3: avoid "except ..., e:" in module_utils/basic.py
Make the code compatible with Pythons 2.4 through 3.5 by using sys.exc_info()[1] instead. This is necessary but not sufficient for Python 3 compatibility.
This commit is contained in:
parent
65630d2ce1
commit
d2bec7f81f
1 changed files with 50 additions and 17 deletions
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@ -162,6 +162,22 @@ except ImportError:
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raise ValueError('malformed string')
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return _convert(node_or_string)
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def get_exception():
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"""Get the current exception.
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This code needs to work on Python 2.4 through 3.x, so we cannot use
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"except Exception, e:" (SyntaxError on Python 3.x) nor
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"except Exception as e:" (SyntaxError on Python 2.4-2.5).
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Instead we must use ::
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except Exception:
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e = get_exception()
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"""
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return sys.exc_info()[1]
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FILE_COMMON_ARGUMENTS=dict(
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src = dict(),
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mode = dict(),
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@ -527,7 +543,8 @@ class AnsibleModule(object):
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return context
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try:
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ret = selinux.lgetfilecon_raw(self._to_filesystem_str(path))
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except OSError, e:
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except OSError:
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e = get_exception()
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if e.errno == errno.ENOENT:
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self.fail_json(path=path, msg='path %s does not exist' % path)
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else:
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@ -607,7 +624,8 @@ class AnsibleModule(object):
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return True
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rc = selinux.lsetfilecon(self._to_filesystem_str(path),
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str(':'.join(new_context)))
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except OSError, e:
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except OSError:
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e = get_exception()
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self.fail_json(path=path, msg='invalid selinux context: %s' % str(e), new_context=new_context, cur_context=cur_context, input_was=context)
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if rc != 0:
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self.fail_json(path=path, msg='set selinux context failed')
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@ -671,7 +689,8 @@ class AnsibleModule(object):
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except Exception:
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try:
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mode = self._symbolic_mode_to_octal(path_stat, mode)
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except Exception, e:
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except Exception:
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e = get_exception()
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self.fail_json(path=path,
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msg="mode must be in octal or symbolic form",
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details=str(e))
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@ -698,14 +717,16 @@ class AnsibleModule(object):
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new_underlying_stat = os.stat(path)
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if underlying_stat.st_mode != new_underlying_stat.st_mode:
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os.chmod(path, stat.S_IMODE(underlying_stat.st_mode))
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except OSError, e:
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except OSError:
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e = get_exception()
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if os.path.islink(path) and e.errno == errno.EPERM: # Can't set mode on symbolic links
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pass
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elif e.errno in (errno.ENOENT, errno.ELOOP): # Can't set mode on broken symbolic links
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pass
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else:
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raise e
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except Exception, e:
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except Exception:
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e = get_exception()
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self.fail_json(path=path, msg='chmod failed', details=str(e))
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path_stat = os.lstat(path)
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@ -882,7 +903,8 @@ class AnsibleModule(object):
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# setting the locale to '' uses the default locale
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# as it would be returned by locale.getdefaultlocale()
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locale.setlocale(locale.LC_ALL, '')
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except locale.Error, e:
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except locale.Error:
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e = get_exception()
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# fallback to the 'C' locale, which may cause unicode
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# issues but is preferable to simply failing because
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# of an unknown locale
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@ -890,7 +912,8 @@ class AnsibleModule(object):
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os.environ['LANG'] = 'C'
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os.environ['LC_CTYPE'] = 'C'
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os.environ['LC_MESSAGES'] = 'C'
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except Exception, e:
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except Exception:
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e = get_exception()
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self.fail_json(msg="An unknown error was encountered while attempting to validate the locale: %s" % e)
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def _handle_aliases(self):
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@ -1035,7 +1058,8 @@ class AnsibleModule(object):
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return (result, None)
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else:
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return result
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except Exception, e:
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except Exception:
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e = get_exception()
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if include_exceptions:
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return (str, e)
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return str
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@ -1403,7 +1427,8 @@ class AnsibleModule(object):
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try:
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shutil.copy2(fn, backupdest)
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except (shutil.Error, IOError), e:
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except (shutil.Error, IOError):
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e = get_exception()
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self.fail_json(msg='Could not make backup of %s to %s: %s' % (fn, backupdest, e))
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return backupdest
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@ -1412,7 +1437,8 @@ class AnsibleModule(object):
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if os.path.exists(tmpfile):
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try:
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os.unlink(tmpfile)
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except OSError, e:
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except OSError:
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e = get_exception()
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sys.stderr.write("could not cleanup %s: %s" % (tmpfile, e))
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def atomic_move(self, src, dest):
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@ -1426,7 +1452,8 @@ class AnsibleModule(object):
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dest_stat = os.stat(dest)
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os.chmod(src, dest_stat.st_mode & 07777)
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os.chown(src, dest_stat.st_uid, dest_stat.st_gid)
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except OSError, e:
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except OSError:
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e = get_exception()
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if e.errno != errno.EPERM:
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raise
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if self.selinux_enabled():
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@ -1452,7 +1479,8 @@ class AnsibleModule(object):
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try:
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# Optimistically try a rename, solves some corner cases and can avoid useless work, throws exception if not atomic.
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os.rename(src, dest)
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except (IOError,OSError), e:
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except (IOError, OSError):
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e = get_exception()
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# only try workarounds for errno 18 (cross device), 1 (not permitted), 13 (permission denied)
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# and 26 (text file busy) which happens on vagrant synced folders
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if e.errno not in [errno.EPERM, errno.EXDEV, errno.EACCES, errno.ETXTBSY]:
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@ -1463,7 +1491,8 @@ class AnsibleModule(object):
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try:
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tmp_dest = tempfile.NamedTemporaryFile(
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prefix=".ansible_tmp", dir=dest_dir, suffix=dest_file)
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except (OSError, IOError), e:
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except (OSError, IOError):
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e = get_exception()
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self.fail_json(msg='The destination directory (%s) is not writable by the current user.' % dest_dir)
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try: # leaves tmp file behind when sudo and not root
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@ -1480,11 +1509,13 @@ class AnsibleModule(object):
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tmp_stat = os.stat(tmp_dest.name)
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if dest_stat and (tmp_stat.st_uid != dest_stat.st_uid or tmp_stat.st_gid != dest_stat.st_gid):
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os.chown(tmp_dest.name, dest_stat.st_uid, dest_stat.st_gid)
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except OSError, e:
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except OSError:
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e = get_exception()
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if e.errno != errno.EPERM:
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raise
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os.rename(tmp_dest.name, dest)
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except (shutil.Error, OSError, IOError), e:
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except (shutil.Error, OSError, IOError):
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e = get_exception()
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self.cleanup(tmp_dest.name)
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self.fail_json(msg='Could not replace file: %s to %s: %s' % (src, dest, e))
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@ -1609,7 +1640,8 @@ class AnsibleModule(object):
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if cwd and os.path.isdir(cwd):
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try:
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os.chdir(cwd)
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except (OSError, IOError), e:
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except (OSError, IOError):
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e = get_exception()
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self.fail_json(rc=e.errno, msg="Could not open %s, %s" % (cwd, str(e)))
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try:
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@ -1662,7 +1694,8 @@ class AnsibleModule(object):
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cmd.stderr.close()
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rc = cmd.returncode
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except (OSError, IOError), e:
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except (OSError, IOError):
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e = get_exception()
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self.fail_json(rc=e.errno, msg=str(e), cmd=clean_args)
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except:
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self.fail_json(rc=257, msg=traceback.format_exc(), cmd=clean_args)
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