def fix_shebangs()

in dh_virtualenv/deployment.py [0:0]

• 12 lines of code
• 2 McCabe index (conditional complexity)

    def fix_shebangs(self):
        """Translate '/usr/bin/python', '/usr/bin/env python', and 'python' shebang
        lines to point to our virtualenv python.
        """
        pythonpath = os.path.join(self.virtualenv_install_dir, 'bin/python')
        for f in self.find_script_files():
            regex = (r's-^#!\({names}\|.*bin/\(env \)\?{names}\"\?\)-#!{pythonpath}-;'
                     r"s-^'''exec'.*bin/{names}-'''exec' {pythonpath}-"
            ).format(names=_PYTHON_INTERPRETERS_REGEX, pythonpath=re.escape(pythonpath))
            p = subprocess.Popen(
                ['sed', '-i', regex, f],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE,
            )
            subprocess.check_call(['sed', '-i', regex, f])