| """ |
| Constants for generating the layout. |
| """ |
| |
| __author__ = "Steve Dower <[email protected]>" |
| __version__ = "3.8" |
| |
| import os |
| import pathlib |
| import re |
| import struct |
| import sys |
| |
| |
| def _unpack_hexversion(): |
| try: |
| hexversion = int(os.getenv("PYTHON_HEXVERSION"), 16) |
| return struct.pack(">i", hexversion) |
| except (TypeError, ValueError): |
| pass |
| if os.getenv("PYTHONINCLUDE"): |
| try: |
| return _read_patchlevel_version(pathlib.Path(os.getenv("PYTHONINCLUDE"))) |
| except OSError: |
| pass |
| return struct.pack(">i", sys.hexversion) |
| |
| |
| def _get_suffix(field4): |
| name = {0xA0: "a", 0xB0: "b", 0xC0: "rc"}.get(field4 & 0xF0, "") |
| if name: |
| serial = field4 & 0x0F |
| return f"{name}{serial}" |
| return "" |
| |
| |
| def _read_patchlevel_version(sources): |
| if not sources.match("Include"): |
| sources /= "Include" |
| values = {} |
| with open(sources / "patchlevel.h", "r", encoding="utf-8") as f: |
| for line in f: |
| m = re.match(r'#\s*define\s+(PY_\S+?)\s+(\S+)', line.strip(), re.I) |
| if m and m.group(2): |
| v = m.group(2) |
| if v.startswith('"'): |
| v = v[1:-1] |
| else: |
| v = values.get(v, v) |
| if isinstance(v, str): |
| try: |
| v = int(v, 16 if v.startswith("0x") else 10) |
| except ValueError: |
| pass |
| values[m.group(1)] = v |
| return ( |
| values["PY_MAJOR_VERSION"], |
| values["PY_MINOR_VERSION"], |
| values["PY_MICRO_VERSION"], |
| values["PY_RELEASE_LEVEL"] << 4 | values["PY_RELEASE_SERIAL"], |
| ) |
| |
| |
| def check_patchlevel_version(sources): |
| got = _read_patchlevel_version(sources) |
| if got != (VER_MAJOR, VER_MINOR, VER_MICRO, VER_FIELD4): |
| return f"{got[0]}.{got[1]}.{got[2]}{_get_suffix(got[3])}" |
| |
| |
| VER_MAJOR, VER_MINOR, VER_MICRO, VER_FIELD4 = _unpack_hexversion() |
| VER_SUFFIX = _get_suffix(VER_FIELD4) |
| VER_FIELD3 = VER_MICRO << 8 | VER_FIELD4 |
| VER_DOT = "{}.{}".format(VER_MAJOR, VER_MINOR) |
| |
| PYTHON_DLL_NAME = "python{}{}.dll".format(VER_MAJOR, VER_MINOR) |
| PYTHON_STABLE_DLL_NAME = "python{}.dll".format(VER_MAJOR) |
| PYTHON_ZIP_NAME = "python{}{}.zip".format(VER_MAJOR, VER_MINOR) |
| PYTHON_PTH_NAME = "python{}{}._pth".format(VER_MAJOR, VER_MINOR) |
| |
| PYTHON_CHM_NAME = "python{}{}{}{}.chm".format( |
| VER_MAJOR, VER_MINOR, VER_MICRO, VER_SUFFIX |
| ) |
| |
| FREETHREADED_PYTHON_DLL_NAME = "python{}{}t.dll".format(VER_MAJOR, VER_MINOR) |
| FREETHREADED_PYTHON_STABLE_DLL_NAME = "python{}t.dll".format(VER_MAJOR) |
