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Pandas Excel: Convert the data to use the hire_date as the index

Pandas: Excel Exercise-19 with Solution

Write a Pandas program to import given excel data (employee.xlsx ) into a Pandas dataframe and convert the data to use the hire_date as the index. Go to Excel data

Sample Solution:

Python Code :

import pandas as pd
import numpy as np
df = pd.read_excel('E:\employee.xlsx')
result = df.set_index(['hire_date'])
result

Sample Output:

            emp_id   first_name   last_name
hire_date                                  
2003-06-17     100       Steven        King
2005-09-21     101        Neena     Kochhar
2001-01-13     102          Lex     De Haan
2006-01-03     103    Alexander      Hunold
2007-05-21     104        Bruce       Ernst
2005-06-25     105        David      Austin
2006-02-05     106        Valli   Pataballa
2007-02-07     107        Diana     Lorentz
2002-08-17     108        Nancy   Greenberg
2002-08-16     109       Daniel      Faviet
2005-09-28     110         John        Chen
2005-09-30     111       Ismael     Sciarra
2006-03-07     112  Jose Manuel       Urman
2007-12-07     113         Luis        Popp
2002-12-07     114          Den    Raphaely
2003-05-18     115    Alexander        Khoo
2005-12-24     116       Shelli       Baida
2005-07-24     117        Sigal      Tobias
2006-11-15     118          Guy      Himuro
2007-08-10     119        Karen  Colmenares

Excel Data:

employee.xlsx:

Sheet-1


Sheet-2


Sheet-3


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Previous: Write a Pandas program to import given excel data (employee.xlsx ) into a Pandas dataframe and find a list of employees of a specified year.
Next: Write a Pandas program to import given excel data (employee.xlsx ) into a Pandas dataframe and sort based on multiple given columns.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m