def main():
# PyLint for Python3 thinks we import from ourselves if we really
# import from package, pylint:disable=I0021,no-name-in-module
# Also high complexity.
# pylint: disable=too-many-branches,too-many-locals,too-many-statements
if "NUITKA_BINARY_NAME" in os.environ:
sys.argv[0] = os.environ["NUITKA_BINARY_NAME"]
if "NUITKA_PYTHONPATH" in os.environ:
# Restore the PYTHONPATH gained from the site module, that we chose not
# to have imported. pylint: disable=eval-used
sys.path = eval(os.environ["NUITKA_PYTHONPATH"])
del os.environ["NUITKA_PYTHONPATH"]
else:
# Remove path element added for being called via "__main__.py", this can
# only lead to trouble, having e.g. a "distutils" in sys.path that comes
# from "nuitka.distutils".
sys.path = [
path_element
for path_element in sys.path
if os.path.dirname(os.path.abspath(__file__)) != path_element
]
# For re-execution, we might not have done this.
from nuitka import Options # isort:skip
Options.parseArgs()
from nuitka.utils import Utils, Execution # isort:skip
import logging # isort:skip
logging.basicConfig(format = "Nuitka:%(levelname)s:%(message)s")
# We don't care, and these are triggered by run time calculations of "range" and
# others, while on python2.7 they are disabled by default.
warnings.simplefilter("ignore", DeprecationWarning)
# We will run with the Python configuration as specified by the user, if it does
# not match, we restart ourselves with matching configuration.
needs_reexec = False
current_version = "%d.%d" % (sys.version_info[0], sys.version_info[1])
# We support to execute with a specified version.
intended_version = Options.getIntendedPythonVersion()
if intended_version is None:
intended_version = current_version
# If it's a different version, we find it by guessing it, otherwise we use the
# one previously used.
if current_version != intended_version:
if Utils.getOS() == "Windows":
python_binary = Execution.getPythonExePathWindows(
intended_version,
Options.getIntendedPythonArch()
)
else:
python_binary = Execution.getExecutablePath("python" + intended_version)
if python_binary is None:
sys.exit(
"Error, cannot find Python %s binary in PATH (%s)." % (
intended_version,
os.environ.get("PATH", "")
)
)
needs_reexec = True
else:
python_binary = sys.executable
if sys.flags.no_site == 0:
needs_reexec = True
# The hash randomization totally changes the created source code created,
# changing it every single time Nuitka is run. This kills any attempt at
# caching it, and comparing generated source code. While the created binary
# actually may still use it, during compilation we don't want to. So lets
# disable it.
if os.environ.get("PYTHONHASHSEED", "-1") != '0':
needs_reexec = True
# In case we need to re-execute.
if needs_reexec:
if not Options.isAllowedToReexecute():
sys.exit("Error, not allowed to re-execute, but that would be needed.")
our_filename = sys.modules[__name__].__file__
# Workaround for --python-version which will choke on existing, but
# not matching .pyc files.
if current_version != intended_version:
pyc_filename = our_filename[:-2] + ".pyc"
if os.path.exists(pyc_filename):
try:
os.unlink(pyc_filename)
except OSError:
pass
# Execute with full path as the process name, so it can find itself and its
# libraries.
args = [
python_binary,
python_binary,
"-S",
our_filename,
]
os.environ["NUITKA_BINARY_NAME"] = sys.modules["__main__"].__file__
if Options.is_nuitka_run:
args.append("--run")
# Same arguments as before.
args += sys.argv[1:] + list(Options.getMainArgs())
if current_version == intended_version:
os.environ["NUITKA_PYTHONPATH"] = repr(
sys.path
)
from nuitka.importing.PreloadedPackages import detectPreLoadedPackagePaths, detectPthImportedPackages
os.environ["NUITKA_NAMESPACES"] = repr(
detectPreLoadedPackagePaths()
)
if "site" in sys.modules:
os.environ["NUITKA_SITE_FILENAME"] = sys.modules["site"].__file__
os.environ["NUITKA_PTH_IMPORTED"] = repr(detectPthImportedPackages())
os.environ["NUITKA_SITE_FLAG"] = str(sys.flags.no_site) \
if "no_site" not in Options.getPythonFlags() \
else '1'
os.environ["PYTHONHASHSEED"] = '0'
Execution.callExec(args)
if Options.isShowMemory():
from nuitka.utils import MemoryUsage
MemoryUsage.startMemoryTracing()
# Inform the user about potential issues.
if current_version not in Options.getSupportedPythonVersions():
# Do not disturb run of automatic tests, detected from the presence of
# that environment variable.
if "PYTHON" not in os.environ:
logging.warning(
"The version '%s' is not currently supported. Expect problems.",
current_version
)
if "NUITKA_NAMESPACES" in os.environ:
# Restore the detected name space packages, that were force loaded in
# site.py, and will need a free pass later on. pylint: disable=eval-used
from nuitka.importing.PreloadedPackages import setPreloadedPackagePaths
setPreloadedPackagePaths(eval(os.environ["NUITKA_NAMESPACES"]))
del os.environ["NUITKA_NAMESPACES"]
if "NUITKA_PTH_IMPORTED" in os.environ:
# Restore the packages that the ".pth" files asked to import.
# pylint: disable=eval-used
from nuitka.importing.PreloadedPackages import setPthImportedPackages
setPthImportedPackages(eval(os.environ["NUITKA_PTH_IMPORTED"]))
del os.environ["NUITKA_PTH_IMPORTED"]
# Now the real main program of Nuitka can take over.
from nuitka import MainControl # isort:skip
MainControl.main()
if Options.isShowMemory():
MemoryUsage.showMemoryTrace()
needs_reexec = False
current_version = "%d.%d" % (sys.version_info[0], sys.version_info[1])
# We support to execute with a specified version.
intended_version = Options.getIntendedPythonVersion()
if intended_version is None:
intended_version = current_version
# If it's a different version, we find it by guessing it, otherwise we use the
# one previously used.
if current_version != intended_version:
if Utils.getOS() == "Windows":
python_binary = Execution.getPythonExePathWindows(
intended_version,
Options.getIntendedPythonArch()
)
else:
python_binary = Execution.getExecutablePath("python" + intended_version)
if python_binary is None:
sys.exit(
"Error, cannot find Python %s binary in PATH (%s)." % (
intended_version,
os.environ.get("PATH", "")
)
)
needs_reexec = True
else:
python_binary = sys.executable
