8 examples of 'generate requirements.txt python' in Python

425
def write_setup_requirements(cmd, basename, filename):
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    data = StringIO()
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    _write_requirements(data, cmd.distribution.setup_requires)
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    cmd.write_or_delete_file("setup-requirements", filename, data.getvalue())

656
def write_setup_requirements(cmd, basename, filename):
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    data = io.StringIO()
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    _write_requirements(data, cmd.distribution.setup_requires)
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    cmd.write_or_delete_file("setup-requirements", filename, data.getvalue())

39
def install_requirements() -> [str]:
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    return read_requirements_file("requirements.txt")

96
def install_requirements():
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    # TODO: Detect when requirements.txt changes instead of checking for a file
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    if os.path.exists(requirements_installed_path):
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        return
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    print 'Installing requirements...'
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    shell(pip_path, 'install', '-r', 'requirements.txt')
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    shell(pip_path, 'install', os.path.join(vendor_path, 'nose-1.1.2.tar.gz'))
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    shell(pip_path, 'install', '-e', '.')
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    open(requirements_installed_path, 'w').close()

31
def extract_requirements(filename):
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    with open(filename, 'r') as requirements_file:
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        return [x[:-1] for x in requirements_file.readlines()]

8
def get_requirements():
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    """Return the components defined in requirements.txt."""
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    with open('requirements.txt') as fin:
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        return [l.split()[0].split('#', 1)[0].strip() for l in fin
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                if l and not l.startswith('git')]

35
@staticmethod
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def requirements(fname):
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    """
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    Create a list of requirements from the output of the pip freeze command
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    saved in a text file.
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    """
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    packages = Setup.read(fname, fail_silently=True).split('\n')
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    packages = (p.strip() for p in packages)
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    packages = (p for p in packages if p and not p.startswith('#'))
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    packages = (p for p in packages if p and not p.startswith('https://'))
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    return list(packages)

10
@contextmanager
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def _generate_requirements_file(ctx):
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    requirements_path = os.path.join(ctx['env_path'], 'requirements.txt')
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    tmp_requirement_path = os.path.join(ctx['env_path'], 'tmp_requirements.txt')
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    requirements = [_req for _req in parse_requirements(requirements_path)]
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    with open(tmp_requirement_path, 'w+') as file:
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        file.writelines('\n'.join(requirements))
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    yield
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    ctx.run('rm {env_path}/tmp_requirements.txt'.format(**ctx))