def fetch_portable_python(dst):
url = get_portable_python_url()
if not url:
log.debug("Could not find portable Python for %s", util.get_systype())
return None
try:
log.debug("Downloading portable python...")
archive_path = util.download_file(
url,
os.path.join(os.path.join(dst, ".cache", "tmp"),
os.path.basename(url)))
python_dir = os.path.join(dst, "python3")
util.safe_remove_dir(python_dir)
util.safe_create_dir(python_dir, raise_exception=True)
log.debug("Unpacking portable python...")
util.unpack_archive(archive_path, python_dir)
if util.IS_WINDOWS:
return os.path.join(python_dir, "python.exe")
return os.path.join(python_dir, "bin", "python3")
except: # pylint:disable=bare-except
log.debug("Could not download portable python")
return None
def create_with_remote_venv(python_exe, penv_dir):
util.safe_remove_dir(penv_dir)
log.debug("Downloading virtualenv package archive")
venv_script_path = util.download_file(
VIRTUALENV_URL,
os.path.join(os.path.dirname(penv_dir), ".cache", "tmp",
os.path.basename(VIRTUALENV_URL)),
)
if not venv_script_path:
raise exception.PIOInstallerException(
"Could not find virtualenv script")
command = [python_exe, venv_script_path, penv_dir]
log.debug("Creating virtual environment: %s", " ".join(command))
subprocess.check_output(command, stderr=subprocess.PIPE)
return penv_dir
def create_with_local_venv(python_exe, penv_dir):
venv_cmd_options = [
[python_exe, "-m", "venv", penv_dir],
[python_exe, "-m", "virtualenv", "-p", python_exe, penv_dir],
["virtualenv", "-p", python_exe, penv_dir],
[python_exe, "-m", "virtualenv", penv_dir],
["virtualenv", penv_dir],
]
last_error = None
for command in venv_cmd_options:
util.safe_remove_dir(penv_dir)
log.debug("Creating virtual environment: %s", " ".join(command))
try:
subprocess.check_output(command, stderr=subprocess.PIPE)
return penv_dir
except Exception as e: # pylint:disable=broad-except
last_error = e
raise last_error # pylint:disable=raising-bad-type