RuntimeWarning: Could not locate the config file.

[hengee]

I have install pylearn-parsimony accordingly but when I run the example code for elastic net:

import parsimony.estimators as estimators
alpha = 0.1  # global penalty
l = 0.1  # l1 ratio (lasso)
enet_estimator = estimators.ElasticNet(l=l, alpha=alpha)
enet_estimator.fit(X, y)
print("Estimated beta error =", np.linalg.norm(enet_estimator.beta - beta))

It then returns:

/usr/local/lib/python3.6/dist-packages/pylearn_parsimony-0.3.1-py3.6.egg/parsimony/config.py:55: RuntimeWarning: Could not locate the config file.
Estimated beta error = 0.8064548347250173
/usr/local/lib/python3.6/dist-packages/pylearn_parsimony-0.3.1-py3.6.egg/parsimony/config.py:66: RuntimeWarning: Could not locate the config file.

[desanou]

I have the same warning when I import parsimony.estimators. On my side, it only appears during the first import in the python session.

[DimitriPapadopoulos]

The warning is emitted in __init__(), __del__(), or flush(). See for example:

pylearn-parsimony/parsimony/config.py

Lines 44 to 55 in 969ea18

	self._ini_file = self._ini_file_name(str(ini_file))
	self._config = configparser.ConfigParser()
	if os.path.exists(self._ini_file):
	try:
	self._config.read(self._ini_file)
	except configparser.ParsingError:
	warnings.warn("Could not parse the config file.",
	RuntimeWarning)
	else:
	warnings.warn("Could not locate the config file.", RuntimeWarning)

I guess something's wrong with self._ini_file = self._ini_file_name(str(ini_file)):

pylearn-parsimony/parsimony/config.py

Lines 71 to 82 in 969ea18

	def _ini_file_name(self, ini_file):
	"""Extracts the directory of this module.
	"""
	fname = inspect.currentframe() # This module.
	fname = inspect.getfile(fname) # Filename of this module.
	fname = os.path.abspath(fname) # Absolute path of this module.
	fname = os.path.dirname(fname) # Directory of this module.
	if fname[-1] != "/":
	fname = fname + "/" # Should be there, but just in case ...
	fname = fname + ini_file # The ini file.
	return fname

It would help if you could add print statements to find the path of the config file and start investigating why it is missing.

This might be related:

pylearn-parsimony/parsimony/config.py

Lines 29 to 31 in 969ea18

	# TODO: Python 3 destroys the ini file sometimes on delete. Make the config
	# read the file on every call? Slower, but much safer; especially when
	# running multiple instances of pylearn-parsimony.