Vendor debugpy for VS Code attach debugging

Bundles debugpy 1.7.0 directly in python/ so "Maya: Attach (debugpy)"
works with no per-machine pip install step. Installed via Maya 2022's
own pip so it resolved a version actually compatible with Python 3.7
(Maya 2022's interpreter), then verified import + listen() succeeds
under all three target Maya Python versions (3.7/3.9/3.10).

Also fixes a latent __file__-under-exec() bug in
start_debug_server.py (same pitfall as Maya's own plugin loader,
never hit until this exercised it) and corrects the README's Maya
Python version claim -- 2022 ships Python 3.7, not 3.9 as previously
stated, which was never independently verified until now.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
2026-07-14 09:01:16 +08:00
parent e2f2e6668a
commit ec5f52c7c6
623 changed files with 236815 additions and 12 deletions
@@ -0,0 +1,177 @@
'''
Helper to build pydevd.
It should:
* recreate our generated files
* compile cython deps (properly setting up the environment first).
Note that it's used in the CI to build the cython deps based on the PYDEVD_USE_CYTHON environment variable.
'''
from __future__ import print_function
import os
import subprocess
import sys
from generate_code import remove_if_exists, root_dir, is_python_64bit, generate_dont_trace_files, generate_cython_module
def validate_pair(ob):
try:
if not (len(ob) == 2):
print("Unexpected result:", ob, file=sys.stderr)
raise ValueError
except:
return False
return True
def consume(it):
try:
while True:
next(it)
except StopIteration:
pass
def get_environment_from_batch_command(env_cmd, initial=None):
"""
Take a command (either a single command or list of arguments)
and return the environment created after running that command.
Note that if the command must be a batch file or .cmd file, or the
changes to the environment will not be captured.
If initial is supplied, it is used as the initial environment passed
to the child process.
"""
if not isinstance(env_cmd, (list, tuple)):
env_cmd = [env_cmd]
if not os.path.exists(env_cmd[0]):
raise RuntimeError('Error: %s does not exist' % (env_cmd[0],))
# construct the command that will alter the environment
env_cmd = subprocess.list2cmdline(env_cmd)
# create a tag so we can tell in the output when the proc is done
tag = 'Done running command'
# construct a cmd.exe command to do accomplish this
cmd = 'cmd.exe /s /c "{env_cmd} && echo "{tag}" && set"'.format(**vars())
# launch the process
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, env=initial)
# parse the output sent to stdout
lines = proc.stdout
# consume whatever output occurs until the tag is reached
for line in lines:
line = line.decode('utf-8')
if 'The specified configuration type is missing.' in line:
raise AssertionError('Error executing %s. View http://blog.ionelmc.ro/2014/12/21/compiling-python-extensions-on-windows/ for details.' % (env_cmd))
if tag in line:
break
if sys.version_info[0] > 2:
# define a way to handle each KEY=VALUE line
handle_line = lambda l: l.decode('utf-8').rstrip().split('=', 1)
else:
# define a way to handle each KEY=VALUE line
handle_line = lambda l: l.rstrip().split('=', 1)
# parse key/values into pairs
pairs = map(handle_line, lines)
# make sure the pairs are valid
valid_pairs = filter(validate_pair, pairs)
# construct a dictionary of the pairs
result = dict(valid_pairs)
# let the process finish
proc.communicate()
return result
def remove_binaries(suffixes):
for f in os.listdir(os.path.join(root_dir, '_pydevd_bundle')):
for suffix in suffixes:
if f.endswith(suffix):
remove_if_exists(os.path.join(root_dir, '_pydevd_bundle', f))
def build():
if '--no-remove-binaries' not in sys.argv:
remove_binaries(['.pyd', '.so'])
os.chdir(root_dir)
env = None
if sys.platform == 'win32':
# "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\vcvars64.bat"
# set MSSdk=1
# set DISTUTILS_USE_SDK=1
# set VS100COMNTOOLS=C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\Tools
if 'GITHUB_ACTION' not in os.environ:
env = os.environ.copy()
if sys.version_info[:2] in ((3, 6), (3, 7), (3, 8), (3, 9), (3, 10), (3, 11)):
FORCE_PYDEVD_VC_VARS = os.environ.get('FORCE_PYDEVD_VC_VARS')
if FORCE_PYDEVD_VC_VARS:
env.update(get_environment_from_batch_command([FORCE_PYDEVD_VC_VARS], initial=os.environ.copy()))
else:
import setuptools # We have to import it first for the compiler to be found
from distutils import msvc9compiler
vcvarsall = msvc9compiler.find_vcvarsall(14.0)
if vcvarsall is None or not os.path.exists(vcvarsall):
msvc_version = msvc9compiler.get_build_version()
print('msvc_version', msvc_version)
vcvarsall = msvc9compiler.find_vcvarsall(msvc_version)
if vcvarsall is None or not os.path.exists(vcvarsall):
raise RuntimeError('Error finding vcvarsall.')
if is_python_64bit():
env.update(get_environment_from_batch_command(
[vcvarsall, 'amd64'],
initial=os.environ.copy()))
else:
env.update(get_environment_from_batch_command(
[vcvarsall, 'x86'],
initial=os.environ.copy()))
else:
raise AssertionError('Unable to setup environment for Python: %s' % (sys.version,))
env['MSSdk'] = '1'
env['DISTUTILS_USE_SDK'] = '1'
additional_args = []
for arg in sys.argv:
if arg.startswith('--target-pyd-name='):
additional_args.append(arg)
if arg.startswith('--target-pyd-frame-eval='):
additional_args.append(arg)
break
else:
additional_args.append('--force-cython') # Build always forces cython!
args = [
sys.executable, os.path.join(os.path.dirname(__file__), '..', 'setup_pydevd_cython.py'), 'build_ext', '--inplace',
] + additional_args
print('Calling args: %s' % (args,))
subprocess.check_call(args, env=env,)
if __name__ == '__main__':
use_cython = os.getenv('PYDEVD_USE_CYTHON', '').lower()
# Note: don't import pydevd during build (so, accept just yes/no in this case).
if use_cython == 'yes':
print("Building")
build()
elif use_cython == 'no':
print("Removing binaries")
remove_binaries(['.pyd', '.so'])
elif not use_cython:
# Regular process
if '--no-regenerate-files' not in sys.argv:
print("Generating dont trace files")
generate_dont_trace_files()
print("Generating cython modules")
generate_cython_module()
print("Building")
build()
else:
raise RuntimeError('Unexpected value for PYDEVD_USE_CYTHON: %s (accepted: yes, no)' % (use_cython,))