Matthew Scanlon
09/27/2024, 4:57 PM..\..\.venv\lib\site-packages\prefect\testing\utilities.py:147: in prefect_test_harness
test_server.start(timeout=30)
..\..\.venv\lib\site-packages\prefect\server\api\server.py:775: in start
self.server_process = self._run_uvicorn_command()
..\..\.venv\lib\site-packages\prefect\server\api\server.py:822: in _run_uvicorn_command
return subprocess.Popen(
C:\Users\User\AppData\Local\Programs\Python\Python310\lib\subprocess.py:966: in __init__
self._execute_child(args, executable, preexec_fn, close_fds,
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <Popen: returncode: None args: ['"C:\\Users\\User\\Documents\\...>
args = '\\"C:\\Users\\User\\Documents\\Github\\python\\packagefoo\\.venv\\Scripts\\python.exe\\" -m uvicorn...ackages\\" --factory prefect.server.api.server:create_app --host 127.0.0.1 --port 8771 --log-level error --lifespan on'
executable = None, preexec_fn = None, close_fds = True, pass_fds = ()
cwd = None
env = {'ALLUSERSPROFILE': 'C:\\ProgramData', 'APPDATA': 'C:\\Users\\User\\AppData\\Roaming', 'AWS_ACCESS_KEY_ID': 'foo', 'AWS_SECRET_ACCESS_KEY': 'bar', ...}
startupinfo = <subprocess.STARTUPINFO object at 0x000001E6C1C9EB30>
creationflags = 0, shell = False, p2cread = -1, p2cwrite = -1, c2pread = -1
c2pwrite = -1, errread = -1, errwrite = -1, unused_restore_signals = True
unused_gid = None, unused_gids = None, unused_uid = None, unused_umask = -1
unused_start_new_session = False
def _execute_child(self, args, executable, preexec_fn, close_fds,
pass_fds, cwd, env,
startupinfo, creationflags, shell,
p2cread, p2cwrite,
c2pread, c2pwrite,
errread, errwrite,
unused_restore_signals,
unused_gid, unused_gids, unused_uid,
unused_umask,
unused_start_new_session):
"""Execute program (MS Windows version)"""
assert not pass_fds, "pass_fds not supported on Windows."
if isinstance(args, str):
pass
elif isinstance(args, bytes):
if shell:
raise TypeError('bytes args is not allowed on Windows')
args = list2cmdline([args])
elif isinstance(args, os.PathLike):
if shell:
raise TypeError('path-like args is not allowed when '
'shell is true')
args = list2cmdline([args])
else:
args = list2cmdline(args)
if executable is not None:
executable = os.fsdecode(executable)
# Process startup details
if startupinfo is None:
startupinfo = STARTUPINFO()
else:
# bpo-34044: Copy STARTUPINFO since it is modified above,
# so the caller can reuse it multiple times.
startupinfo = startupinfo.copy()
use_std_handles = -1 not in (p2cread, c2pwrite, errwrite)
if use_std_handles:
startupinfo.dwFlags |= _winapi.STARTF_USESTDHANDLES
startupinfo.hStdInput = p2cread
startupinfo.hStdOutput = c2pwrite
startupinfo.hStdError = errwrite
attribute_list = startupinfo.lpAttributeList
have_handle_list = bool(attribute_list and
"handle_list" in attribute_list and
attribute_list["handle_list"])
# If we were given an handle_list or need to create one
if have_handle_list or (use_std_handles and close_fds):
if attribute_list is None:
attribute_list = startupinfo.lpAttributeList = {}
handle_list = attribute_list["handle_list"] = \
list(attribute_list.get("handle_list", []))
if use_std_handles:
handle_list += [int(p2cread), int(c2pwrite), int(errwrite)]
handle_list[:] = self._filter_handle_list(handle_list)
if handle_list:
if not close_fds:
warnings.warn("startupinfo.lpAttributeList['handle_list'] "
"overriding close_fds", RuntimeWarning)
# When using the handle_list we always request to inherit
# handles but the only handles that will be inherited are
# the ones in the handle_list
close_fds = False
if shell:
startupinfo.dwFlags |= _winapi.STARTF_USESHOWWINDOW
startupinfo.wShowWindow = _winapi.SW_HIDE
comspec = os.environ.get("COMSPEC", "cmd.exe")
args = '{} /c "{}"'.format (comspec, args)
if cwd is not None:
cwd = os.fsdecode(cwd)
sys.audit("subprocess.Popen", executable, args, cwd, env)
# Start the process
try:
> hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
# no special security
None, None,
int(not close_fds),
creationflags,
env,
cwd,
startupinfo)
E FileNotFoundError: [WinError 2] The system cannot find the file specified
C:\Users\User\AppData\Local\Programs\Python\Python310\lib\subprocess.py:1435: FileNotFoundError