import pandas as pd pd.merge_asof(pd.DataFrame(), pd.DataFrame(), on='MergeCol') 

************* Module replication replication.py:1:0: C0111: Missing module docstring (missing-docstring) Traceback (most recent call last): File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/bases.py", line 183, in getattr values = self._proxied.instance_attr(name, context) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 2311, in instance_attr target=self, attribute=name, context=context astroid.exceptions.AttributeInferenceError: 'values' not found on <ClassDef.SparseSeries l.38 at 0x1099349e8>. The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/bases.py", line 217, in igetattr get_attr = self.getattr(name, context, lookupclass=False) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/bases.py", line 195, in getattr ) from exc astroid.exceptions.AttributeInferenceError: 'values' not found on <Instance of pandas.core.sparse.series.SparseSeries at 0x4452257920>. During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/g.grob/anaconda3/envs/py37/bin/pylint", line 11, in <module> sys.exit(run_pylint()) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/__init__.py", line 20, in run_pylint Run(sys.argv[1:]) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/lint.py", line 1628, in __init__ linter.check(args) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/lint.py", line 943, in check self._do_check(files_or_modules) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/lint.py", line 1075, in _do_check self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/lint.py", line 1158, in check_astroid_module walker.walk(ast_node) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/utils.py", line 1303, in walk self.walk(child) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/utils.py", line 1303, in walk self.walk(child) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/utils.py", line 1300, in walk cb(astroid) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/checkers/logging.py", line 215, in visit_call result, name = is_logger_class() File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/pylint/checkers/logging.py", line 197, in is_logger_class for inferred in node.func.infer(): File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred yield next(generator) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped res = next(generator) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/inference.py", line 303, in infer_attribute yield from owner.igetattr(self.attrname, context) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/bases.py", line 137, in _infer_stmts for inferred in stmt.infer(context=context): File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference yield from islice(iterator, size) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator for result in generator: File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred yield next(generator) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped res = next(generator) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/bases.py", line 137, in _infer_stmts for inferred in stmt.infer(context=context): File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference yield from islice(iterator, size) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator for result in generator: File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred yield next(generator) ... File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped res = next(generator) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/inference.py", line 238, in infer_import yield self.do_import_module(self.real_name(name)) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/mixins.py", line 100, in do_import_module modname, level=level, relative_only=level and level >= 1 File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 619, in import_module return MANAGER.ast_from_module_name(absmodname) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/manager.py", line 171, in ast_from_module_name return self.ast_from_file(found_spec.location, modname, fallback=False) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/manager.py", line 91, in ast_from_file return AstroidBuilder(self).file_build(filepath, modname) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/builder.py", line 135, in file_build module = self._data_build(data, modname, path) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/builder.py", line 188, in _data_build module = builder.visit_module(node, modname, node_file, package) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 158, in visit_module newnode.postinit([self.visit(child, newnode) for child in node.body]) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 158, in <listcomp> newnode.postinit([self.visit(child, newnode) for child in node.body]) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 170, in visit return visit_method(node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 1032, in visit_classdef node, parent, newstyle=newstyle File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 404, in visit_classdef [self.visit(child, newnode) for child in node.body], File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 404, in <listcomp> [self.visit(child, newnode) for child in node.body], File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 170, in visit return visit_method(node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 607, in visit_functiondef return self._visit_functiondef(nodes.FunctionDef, node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 597, in _visit_functiondef body=[self.visit(child, newnode) for child in node.body], File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 597, in <listcomp> body=[self.visit(child, newnode) for child in node.body], File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 170, in visit return visit_method(node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 653, in visit_if [self.visit(child, newnode) for child in node.body], File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 653, in <listcomp> [self.visit(child, newnode) for child in node.body], File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 170, in visit return visit_method(node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 960, in visit_raise _visit_or_none(node, "exc", self, newnode), File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 104, in _visit_or_none return getattr(visitor, visit)(value, parent, **kws) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 170, in visit return visit_method(node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 358, in visit_call args = [self.visit(child, newnode) for child in node.args] File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 358, in <listcomp> args = [self.visit(child, newnode) for child in node.args] File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 170, in visit return visit_method(node, parent) File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/rebuilder.py", line 760, in visit_str parent, File "/Users/g.grob/anaconda3/envs/py37/lib/python3.7/site-packages/astroid/node_classes.py", line 2466, in __init__ super(Const, self).__init__(lineno, col_offset, parent) RecursionError: maximum recursion depth exceeded while calling a Python object 

pylint 2.3.1 astroid 2.2.5 Python 3.7.2 (default, Dec 29 2018, 00:00:04) [Clang 4.0.1 (tags/RELEASE_401/final)]