ydata-profiling: AttributeError: 'DataFrame' object has no attribute 'profile_report'

Describe the bug Running the example in readme generates an error.

To Reproduce Running:

import numpy as np
import pandas as pd
import pandas_profiling

df = pd.DataFrame(
    np.random.rand(100, 5),
    columns=['a', 'b', 'c', 'd', 'e']
)
df.profile_report()

in a Jupyter notebook gives:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-16-f9a7584e785c> in <module>
----> 1 df.profile_report()

~/anaconda3/lib/python3.7/site-packages/pandas/core/generic.py in __getattr__(self, name)
   5065             if self._info_axis._can_hold_identifiers_and_holds_name(name):
   5066                 return self[name]
-> 5067             return object.__getattribute__(self, name)
   5068 
   5069     def __setattr__(self, name, value):

AttributeError: 'DataFrame' object has no attribute 'profile_report'

Version information: alabaster==0.7.12 anaconda-client==1.7.2 anaconda-navigator==1.9.7 anaconda-project==0.8.2 asn1crypto==0.24.0 astroid==2.2.5 astropy==3.1.2 atomicwrites==1.3.0 attrs==19.1.0 Babel==2.6.0 backcall==0.1.0 backports.os==0.1.1 backports.shutil-get-terminal-size==1.0.0 beautifulsoup4==4.7.1 bitarray==0.8.3 bkcharts==0.2 bleach==3.1.0 bokeh==1.0.4 boto==2.49.0 Bottleneck==1.2.1 certifi==2019.3.9 cffi==1.12.2 chardet==3.0.4 Click==7.0 cloudpickle==0.8.0 clyent==1.2.2 colorama==0.4.1 conda==4.6.14 conda-build==3.17.8 conda-verify==3.1.1 confuse==1.0.0 contextlib2==0.5.5 cryptography==2.6.1 cycler==0.10.0 Cython==0.29.6 cytoolz==0.9.0.1 dask==1.1.4 decorator==4.4.0 defusedxml==0.5.0 distributed==1.26.0 docutils==0.14 entrypoints==0.3 et-xmlfile==1.0.1 fastcache==1.0.2 filelock==3.0.10 Flask==1.0.2 future==0.17.1 gevent==1.4.0 glob2==0.6 gmpy2==2.0.8 greenlet==0.4.15 h5py==2.9.0 heapdict==1.0.0 hpat==0.28.1 html5lib==1.0.1 htmlmin==0.1.12 idna==2.8 imageio==2.5.0 imagesize==1.1.0 importlib-metadata==0.0.0 ipykernel==5.1.0 ipyparallel==6.2.4 ipython==7.4.0 ipython-genutils==0.2.0 ipywidgets==7.4.2 isort==4.3.16 itsdangerous==1.1.0 jdcal==1.4 jedi==0.13.3 jeepney==0.4 Jinja2==2.10 jsonschema==3.0.1 jupyter==1.0.0 jupyter-client==5.2.4 jupyter-console==6.0.0 jupyter-core==4.4.0 jupyterlab==0.35.4 jupyterlab-server==0.2.0 keyring==18.0.0 kiwisolver==1.0.1 lazy-object-proxy==1.3.1 libarchive-c==2.8 lief==0.9.0 lightgbm==2.2.3 llvmlite==0.28.0 locket==0.2.0 lxml==4.3.2 MarkupSafe==1.1.1 matplotlib==3.0.3 mccabe==0.6.1 missingno==0.4.1 mistune==0.8.4 mkl-fft==1.0.10 mkl-random==1.0.2 mock==2.0.0 more-itertools==6.0.0 mpi4py==3.0.1 mpmath==1.1.0 msgpack==0.6.1 multipledispatch==0.6.0 navigator-updater==0.2.1 nbconvert==5.4.1 nbformat==4.4.0 networkx==2.2 nltk==3.4 nose==1.3.7 notebook==5.7.8 numba==0.43.1 numerapi==1.5.1 numerox==3.7.0 numexpr==2.6.9 numpy==1.16.2 numpydoc==0.8.0 olefile==0.46 openpyxl==2.6.1 packaging==19.0 pandas==0.24.2 pandas-profiling==1.4.1 pandocfilters==1.4.2 parso==0.3.4 partd==0.3.10 path.py==11.5.0 pathlib2==2.3.3 patsy==0.5.1 pbr==5.2.0 pep8==1.7.1 pexpect==4.6.0 phik==0.9.8 pickleshare==0.7.5 Pillow==5.4.1 pkginfo==1.5.0.1 plotly==3.8.1 pluggy==0.9.0 ply==3.11 prometheus-client==0.6.0 prompt-toolkit==2.0.9 psutil==5.6.1 ptyprocess==0.6.0 py==1.8.0 pyarrow==0.11.1 pycodestyle==2.5.0 pycosat==0.6.3 pycparser==2.19 pycrypto==2.6.1 pycurl==7.43.0.2 pyflakes==2.1.1 Pygments==2.3.1 pylint==2.3.1 pyodbc==4.0.26 pyOpenSSL==19.0.0 pyparsing==2.3.1 pyrsistent==0.14.11 PySocks==1.6.8 pytest==4.3.1 pytest-arraydiff==0.3 pytest-astropy==0.5.0 pytest-doctestplus==0.3.0 pytest-openfiles==0.3.2 pytest-pylint==0.14.0 pytest-remotedata==0.3.1 python-dateutil==2.8.0 python-igraph==0.7.1.post6 pytz==2018.9 PyWavelets==1.0.2 PyYAML==5.1 pyzmq==18.0.0 QtAwesome==0.5.7 qtconsole==4.4.3 QtPy==1.7.0 requests==2.21.0 retrying==1.3.3 rope==0.12.0 ruamel-yaml==0.15.46 scikit-image==0.14.2 scikit-learn==0.20.3 scipy==1.2.1 seaborn==0.9.0 SecretStorage==3.1.1 Send2Trash==1.5.0 simplegeneric==0.8.1 singledispatch==3.4.0.3 six==1.12.0 snowballstemmer==1.2.1 sortedcollections==1.1.2 sortedcontainers==2.1.0 soupsieve==1.8 Sphinx==1.8.5 sphinxcontrib-websupport==1.1.0 spyder==3.3.3 spyder-kernels==0.4.2 SQLAlchemy==1.3.1 statsmodels==0.9.0 sympy==1.3 tables==3.5.1 tblib==1.3.2 terminado==0.8.1 testpath==0.4.2 toolz==0.9.0 tornado==6.0.2 tqdm==4.31.1 traitlets==4.3.2 typed-ast==1.4.0 unicodecsv==0.14.1 urllib3==1.24.1 wcwidth==0.1.7 webencodings==0.5.1 Werkzeug==0.14.1 widgetsnbextension==3.4.2 wrapt==1.11.1 wurlitzer==1.0.2 xlrd==1.2.0 XlsxWriter==1.1.5 xlwt==1.3.0 zict==0.1.4 zipp==0.3.3

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