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 install_pip(python_exe, penv_dir):
click.echo(
"Updating Python package manager (PIP) in a virtual environment")
try:
log.debug("Creating pip.conf file in %s", penv_dir)
with open(os.path.join(penv_dir, "pip.conf"), "w") as fp:
fp.write("\n".join(["[global]", "user=no"]))
log.debug("Downloading 'get-pip.py' installer...")
get_pip_path = os.path.join(os.path.dirname(penv_dir), ".cache", "tmp",
os.path.basename(PIP_URL))
util.download_file(PIP_URL, get_pip_path)
log.debug("Installing pip")
subprocess.check_output([python_exe, get_pip_path],
stderr=subprocess.PIPE)
click.echo("PIP has been successfully updated!")
return True
except Exception as e: # pylint:disable=broad-except
log.debug(
"Could not install pip. Error: %s",
str(e),
)
return False
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