./venv/lib/python3.7/site-packages/sklearn/externals/joblib/__init__.py:15: FutureWarning: sklearn.externals.joblib is deprecated in 0.21 and will be removed in 0.23. Please import this functionality directly from joblib, which can be installed with: pip install joblib. If this warning is raised when loading pickled models, you may need to re-serialize those models with scikit-learn 0.21+.
  warnings.warn(msg, category=FutureWarning)
Traceback (most recent call last):
  File "./pipeline5.py", line 124, in <module>
    print("done stage 1 in %0.3fs." % (time() - t0))
NameError: name 'time' is not defined
Traceback (most recent call last):
  File "./top.py", line 12, in <module>
    df1=pd.read_csv('stage41')
  File "./venv/lib/python3.7/site-packages/pandas/io/parsers.py", line 676, in parser_f
    return _read(filepath_or_buffer, kwds)
  File "./venv/lib/python3.7/site-packages/pandas/io/parsers.py", line 448, in _read
    parser = TextFileReader(fp_or_buf, **kwds)
  File "./venv/lib/python3.7/site-packages/pandas/io/parsers.py", line 880, in __init__
    self._make_engine(self.engine)
  File "./venv/lib/python3.7/site-packages/pandas/io/parsers.py", line 1114, in _make_engine
    self._engine = CParserWrapper(self.f, **self.options)
  File "./venv/lib/python3.7/site-packages/pandas/io/parsers.py", line 1891, in __init__
    self._reader = parsers.TextReader(src, **kwds)
  File "pandas/_libs/parsers.pyx", line 374, in pandas._libs.parsers.TextReader.__cinit__
  File "pandas/_libs/parsers.pyx", line 673, in pandas._libs.parsers.TextReader._setup_parser_source
FileNotFoundError: [Errno 2] File stage41 does not exist: 'stage41'