def _create_script_backup(self):
"""Create and save a copy of the script that initialized the Experiment if allowed to, and
if :attr:`source_script` ends with a ".py" extension"""
#################### Attempt to Copy Source Script if Allowed ####################
try:
if not self.source_script.endswith(".py"):
G.Env.result_paths["script_backup"] = None
if G.Env.result_paths["script_backup"] is not None:
self._source_copy_helper()
G.log(
"Created source backup: '{}'".format(self.source_script),
4)
else:
G.log(
"Skipped source backup: '{}'".format(self.source_script),
4)
#################### Exception Handling ####################
except AttributeError as _ex:
if G.Env is None:
raise EnvironmentInactiveError(extra="\n{!s}".format(_ex))
if not hasattr(G.Env, "result_paths"):
raise EnvironmentInvalidError(
extra=f"G.Env lacks 'result_paths' attr\n{_ex!s}")
raise
except KeyError as _ex:
if "script_backup" not in G.Env.result_paths:
raise EnvironmentInvalidError(
extra=
f"G.Env.result_paths lacks 'script_backup' key\n{_ex!s}")
raise
def __init__(self):
"""Base class for other classes that record various Experiment result files. Critical
attributes of the descendants of :class`recorders.BaseRecorder` are set here, enabling them
to function properly
Returns
-------
None
If :attr:`result_path` is None, which means the present result file was blacklisted by
the active Environment
Raises
------
EnvironmentInactiveError
If :attr:`settings.G.Env` is None
EnvironmentInvalidError
If any of the following occur: 1) :attr:`settings.G.Env` does not have an attribute
named 'result_paths', 2) :attr:`settings.G.Env.result_paths` does not contain the
current `result_path_key`, 3) :attr:`settings.G.Env.current_task` is None"""
self.result_path = None
self.result = None
##################################################
# Get Result Path for Record, or Exit Early
##################################################
try:
self.result_path = G.Env.result_paths[self.result_path_key]
except AttributeError as _ex:
if G.Env is None:
raise EnvironmentInactiveError(str(_ex)).with_traceback(
exc_info()[2])
if not hasattr(G.Env, "result_paths"):
_err_message = f"{_ex!s}\nG.Env missing 'result_paths' attr"
raise EnvironmentInvalidError(_err_message).with_traceback(
exc_info()[2])
except KeyError as _ex:
_err_message = f"{_ex!s}\nG.Env.result_paths missing the key: '{self.result_path_key}'"
raise EnvironmentInvalidError(_err_message).with_traceback(
exc_info()[2])
if self.result_path is None:
return # Result file blacklisted and should not be recorded. Kill recording process now
##################################################
# Gather Attributes Required for Record
##################################################
for required_attribute in self.required_attributes:
try:
setattr(self, required_attribute,
getattr(G.Env.current_task, required_attribute))
except AttributeError as _ex:
if G.Env.current_task is None:
_err_message = f"{_ex!s}\nNo active experiment found"
raise EnvironmentInvalidError(_err_message).with_traceback(
exc_info()[2])
raise EnvironmentInvalidError(str(_ex)).with_traceback(
exc_info()[2])
def _validate_environment(self):
"""Ensure there is a currently active Environment instance that is not already occupied"""
if G.Env is None:
raise EnvironmentInactiveError("")
if G.Env.current_task is None:
G.Env.current_task = self
else:
raise EnvironmentInvalidError(
"Current experiment must finish before starting another")
def validate_environment(self):
"""Check that the currently active Environment is suitable"""
if G.Env is None:
raise EnvironmentInactiveError("")
if not all([
hasattr(G.Env, _)
for _ in ["result_paths", "cross_experiment_key"]
]):
raise EnvironmentInvalidError("")
try:
self.lookup_dir = G.Env.result_paths["key_attribute_lookup"]
self.tested_keys_dir = G.Env.result_paths["tested_keys"]
# Ensure :attr:`tested_keys_dir` exists before calling :meth:`does_key_exist`, so "None" paths won't be checked
if os.path.exists(self.tested_keys_dir) is False:
# TypeError may also be raised if :func:`os.path.exists` receives invalid input
raise TypeError
except TypeError: # Key-making blacklisted
if self.tested_keys_dir is None:
return
make_dirs(self.tested_keys_dir)