python panda dataframe code example

Example 1: creating a pandas df

>>> d = {'col1': [1, 2], 'col2': [3, 4]}
>>> df = pd.DataFrame(data=d)
>>> df
   col1  col2
0     1     3
1     2     4

Example 2: pandas in python

If you use Anaconda then it is preinstalled
otherwise: pip install pandas

import pandas as pd
pd.__version__

Example 3: pd dataframe

df = pd.DataFrame ({"x": x_array, "y": y_array})

Example 4: panda python

# install pandas (basic, if path is not set yet)
py -m pip install pandas
# or set PATH to use pip:
setx PATH "%PATH%;C:\<path\to\python\directory\>\Scripts"
pip install pandas
# if "connection error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed" [!]:
py -m pip install --trusted-host pypi.python.org pip pandas
# if PermissionError: [WinError 5] Access is denied
py -m pip install --user pandas
# or via creating a virtual environment venv:
py -m venv c:\path\to\new\environment
# then execute:
c:\path\to\new\environment\Scripts\activate.bat