def check(args, source_code, filename=None, options=None): """Check source code with checker defined with *args* (list) Returns an empty list if checker is not installed""" if args is None: return [] if options is not None: args += options if any(['pyflakes' in arg for arg in args]): # Pyflakes requires an ending new line (pep8 don't! -- see Issue 1123) # Note: this code is not used right now as it is faster to invoke # pyflakes in current Python interpreter (see `check_with_pyflakes` # function above) than calling it through a subprocess source_code += '\n' if filename is None: # Creating a temporary file because file does not exist yet # or is not up-to-date tempfd = tempfile.NamedTemporaryFile(suffix=".py", delete=False) tempfd.write(source_code) tempfd.close() args.append(tempfd.name) else: args.append(filename) output = Popen(args, stdout=PIPE, stderr=PIPE).communicate()[0].strip().decode().splitlines() if filename is None: os.unlink(tempfd.name) results = [] coding = encoding.get_coding(source_code) lines = source_code.splitlines() for line in output: lineno = int(re.search(r'(\:[\d]+\:)', line).group()[1:-1]) if 'analysis:ignore' not in to_text_string(lines[lineno - 1], coding): message = line[line.find(': ') + 2:] results.append((message, lineno)) return results
def check(args, source_code, filename=None, options=None): """Check source code with checker defined with *args* (list) Returns an empty list if checker is not installed""" if args is None: return [] if options is not None: args += options if any(['pyflakes' in arg for arg in args]): # Pyflakes requires an ending new line (pep8 don't! -- see Issue 1123) # Note: this code is not used right now as it is faster to invoke # pyflakes in current Python interpreter (see `check_with_pyflakes` # function above) than calling it through a subprocess source_code += '\n' if filename is None: # Creating a temporary file because file does not exist yet # or is not up-to-date tempfd = tempfile.NamedTemporaryFile(suffix=".py", delete=False) tempfd.write(source_code) tempfd.close() args.append(tempfd.name) else: args.append(filename) output = Popen(args, stdout=PIPE, stderr=PIPE ).communicate()[0].strip().decode().splitlines() if filename is None: os.unlink(tempfd.name) results = [] coding = encoding.get_coding(source_code) lines = source_code.splitlines() for line in output: lineno = int(re.search(r'(\:[\d]+\:)', line).group()[1:-1]) if 'analysis:ignore' not in to_text_string(lines[lineno-1], coding): message = line[line.find(': ')+2:] results.append((message, lineno)) return results
def check_with_pyflakes(source_code, filename=None): """Check source code with pyflakes Returns an empty list if pyflakes is not installed""" try: if filename is None: filename = '<string>' try: source_code += '\n' except TypeError: # Python 3 source_code += to_binary_string('\n') import _ast from pyflakes.checker import Checker # First, compile into an AST and handle syntax errors. try: tree = compile(source_code, filename, "exec", _ast.PyCF_ONLY_AST) except SyntaxError as value: # If there's an encoding problem with the file, the text is None. if value.text is None: results = [] else: results = [(value.args[0], value.lineno)] except (ValueError, TypeError): # Example of ValueError: file contains invalid \x escape character # (see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=674797) # Example of TypeError: file contains null character # (see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=674796) results = [] else: # Okay, it's syntactically valid. Now check it. w = Checker(tree, filename) w.messages.sort(key=lambda x: x.lineno) results = [] coding = encoding.get_coding(source_code) lines = source_code.splitlines() for warning in w.messages: if 'analysis:ignore' not in \ to_text_string(lines[warning.lineno-1], coding): results.append((warning.message % warning.message_args, warning.lineno)) except Exception: # Never return None to avoid lock in spyderlib/widgets/editor.py # See Issue 1547 results = [] if DEBUG_EDITOR: traceback.print_exc() # Print exception in internal console return results