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236 lines
7.5 KiB
236 lines
7.5 KiB
#!/usr/bin/env python
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import re
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import sys
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import shutil
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import os.path
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import subprocess
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import sysconfig
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import reindent
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import untabify
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# Excluded directories which are copies of external libraries:
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# don't check their coding style
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EXCLUDE_DIRS = [os.path.join('Modules', '_ctypes', 'libffi'),
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os.path.join('Modules', '_ctypes', 'libffi_osx'),
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os.path.join('Modules', '_ctypes', 'libffi_msvc'),
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os.path.join('Modules', 'expat'),
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os.path.join('Modules', 'zlib')]
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SRCDIR = sysconfig.get_config_var('srcdir')
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def n_files_str(count):
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"""Return 'N file(s)' with the proper plurality on 'file'."""
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return "{} file{}".format(count, "s" if count != 1 else "")
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def status(message, modal=False, info=None):
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"""Decorator to output status info to stdout."""
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def decorated_fxn(fxn):
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def call_fxn(*args, **kwargs):
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sys.stdout.write(message + ' ... ')
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sys.stdout.flush()
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result = fxn(*args, **kwargs)
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if not modal and not info:
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print "done"
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elif info:
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print info(result)
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else:
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print "yes" if result else "NO"
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return result
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return call_fxn
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return decorated_fxn
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def get_git_branch():
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"""Get the symbolic name for the current git branch"""
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cmd = "git rev-parse --abbrev-ref HEAD".split()
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try:
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return subprocess.check_output(cmd, stderr=subprocess.PIPE)
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except subprocess.CalledProcessError:
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return None
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def get_git_upstream_remote():
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"""Get the remote name to use for upstream branches
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Uses "upstream" if it exists, "origin" otherwise
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"""
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cmd = "git remote get-url upstream".split()
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try:
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subprocess.check_output(cmd, stderr=subprocess.PIPE)
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except subprocess.CalledProcessError:
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return "origin"
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return "upstream"
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@status("Getting base branch for PR",
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info=lambda x: x if x is not None else "not a PR branch")
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def get_base_branch():
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if not os.path.exists(os.path.join(SRCDIR, '.git')):
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# Not a git checkout, so there's no base branch
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return None
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version = sys.version_info
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if version.releaselevel == 'alpha':
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base_branch = "master"
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else:
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base_branch = "{0.major}.{0.minor}".format(version)
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this_branch = get_git_branch()
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if this_branch is None or this_branch == base_branch:
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# Not on a git PR branch, so there's no base branch
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return None
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upstream_remote = get_git_upstream_remote()
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return upstream_remote + "/" + base_branch
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@status("Getting the list of files that have been added/changed",
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info=lambda x: n_files_str(len(x)))
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def changed_files(base_branch=None):
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"""Get the list of changed or added files from git."""
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if os.path.exists(os.path.join(SRCDIR, '.git')):
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# We just use an existence check here as:
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# directory = normal git checkout/clone
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# file = git worktree directory
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if base_branch:
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cmd = 'git diff --name-status ' + base_branch
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else:
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cmd = 'git status --porcelain'
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filenames = []
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st = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE)
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try:
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for line in st.stdout:
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line = line.decode().rstrip()
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status_text, filename = line.split(None, 1)
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status = set(status_text)
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# modified, added or unmerged files
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if not status.intersection('MAU'):
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continue
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if ' -> ' in filename:
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# file is renamed
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filename = filename.split(' -> ', 2)[1].strip()
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filenames.append(filename)
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finally:
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st.stdout.close()
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else:
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sys.exit('need a git checkout to get modified files')
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filenames2 = []
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for filename in filenames:
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# Normalize the path to be able to match using .startswith()
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filename = os.path.normpath(filename)
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if any(filename.startswith(path) for path in EXCLUDE_DIRS):
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# Exclude the file
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continue
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filenames2.append(filename)
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return filenames2
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def report_modified_files(file_paths):
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count = len(file_paths)
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if count == 0:
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return n_files_str(count)
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else:
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lines = ["{}:".format(n_files_str(count))]
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for path in file_paths:
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lines.append(" {}".format(path))
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return "\n".join(lines)
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@status("Fixing whitespace", info=report_modified_files)
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def normalize_whitespace(file_paths):
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"""Make sure that the whitespace for .py files have been normalized."""
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reindent.makebackup = False # No need to create backups.
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fixed = []
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for path in (x for x in file_paths if x.endswith('.py')):
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if reindent.check(os.path.join(SRCDIR, path)):
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fixed.append(path)
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return fixed
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@status("Fixing C file whitespace", info=report_modified_files)
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def normalize_c_whitespace(file_paths):
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"""Report if any C files """
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fixed = []
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for path in file_paths:
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abspath = os.path.join(SRCDIR, path)
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with open(abspath, 'r') as f:
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if '\t' not in f.read():
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continue
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untabify.process(abspath, 8, verbose=False)
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fixed.append(path)
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return fixed
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ws_re = re.compile(br'\s+(\r?\n)$')
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@status("Fixing docs whitespace", info=report_modified_files)
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def normalize_docs_whitespace(file_paths):
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fixed = []
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for path in file_paths:
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abspath = os.path.join(SRCDIR, path)
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try:
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with open(abspath, 'rb') as f:
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lines = f.readlines()
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new_lines = [ws_re.sub(br'\1', line) for line in lines]
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if new_lines != lines:
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shutil.copyfile(abspath, abspath + '.bak')
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with open(abspath, 'wb') as f:
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f.writelines(new_lines)
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fixed.append(path)
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except Exception as err:
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print 'Cannot fix %s: %s' % (path, err)
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return fixed
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@status("Docs modified", modal=True)
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def docs_modified(file_paths):
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"""Report if any file in the Doc directory has been changed."""
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return bool(file_paths)
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@status("Misc/ACKS updated", modal=True)
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def credit_given(file_paths):
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"""Check if Misc/ACKS has been changed."""
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return os.path.join('Misc', 'ACKS') in file_paths
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@status("Misc/NEWS.d updated with `blurb`", modal=True)
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def reported_news(file_paths):
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"""Check if Misc/NEWS.d has been changed."""
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return any(p.startswith(os.path.join('Misc', 'NEWS.d', 'next'))
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for p in file_paths)
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def main():
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base_branch = get_base_branch()
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file_paths = changed_files(base_branch)
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python_files = [fn for fn in file_paths if fn.endswith('.py')]
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c_files = [fn for fn in file_paths if fn.endswith(('.c', '.h'))]
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doc_files = [fn for fn in file_paths if fn.startswith('Doc') and
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fn.endswith(('.rst', '.inc'))]
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misc_files = {p for p in file_paths if p.startswith('Misc')}
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# PEP 8 whitespace rules enforcement.
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normalize_whitespace(python_files)
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# C rules enforcement.
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normalize_c_whitespace(c_files)
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# Doc whitespace enforcement.
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normalize_docs_whitespace(doc_files)
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# Docs updated.
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docs_modified(doc_files)
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# Misc/ACKS changed.
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credit_given(misc_files)
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# Misc/NEWS changed.
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reported_news(misc_files)
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# Test suite run and passed.
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if python_files or c_files:
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end = " and check for refleaks?" if c_files else "?"
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print
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print "Did you run the test suite" + end
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if __name__ == '__main__':
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main()
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