def build_venv(cls, path, executable=None):
if executable is not None:
# Create virtualenv by using an external executable
try:
p = subprocess.Popen(" ".join([executable, "-"]),
stdin=subprocess.PIPE,
shell=True)
p.communicate(encode(CREATE_VENV_COMMAND.format(path)))
except CalledProcessError as e:
raise EnvCommandError(e)
return
try:
from venv import EnvBuilder
# use the same defaults as python -m venv
if os.name == "nt":
use_symlinks = False
else:
use_symlinks = True
builder = EnvBuilder(with_pip=True, symlinks=use_symlinks)
build = builder.create
except ImportError:
# We fallback on virtualenv for Python 2.7
from virtualenv import create_environment
build = create_environment
build(path)
def execute(self, bin, *args, **kwargs):
bin = self._bin(bin)
if not self._is_windows:
args = [bin] + list(args)
if "env" in kwargs:
return os.execvpe(bin, args, kwargs["env"])
else:
return os.execvp(bin, args)
else:
exe = subprocess.Popen([bin] + list(args), **kwargs)
exe.communicate()
return exe.returncode
def build_venv(
cls,
path,
executable=None): # type: (Union[Path,str], Optional[str]) -> ()
if executable is not None:
# Create virtualenv by using an external executable
try:
p = subprocess.Popen(
list_to_shell_command([executable, "-"]),
stdin=subprocess.PIPE,
shell=True,
)
p.communicate(encode(CREATE_VENV_COMMAND.format(path)))
except CalledProcessError as e:
raise EnvCommandError(e)
return
try:
from venv import EnvBuilder
# use the same defaults as python -m venv
if os.name == "nt":
use_symlinks = False
else:
use_symlinks = True
builder = EnvBuilder(with_pip=True, symlinks=use_symlinks)
builder.create(str(path))
except ImportError:
try:
# We fallback on virtualenv for Python 2.7
from virtualenv import create_environment
create_environment(str(path))
except ImportError:
# since virtualenv>20 we have to use cli_run
from virtualenv import cli_run
cli_run([str(path)])
