str.upper() str.lower() str.title(): Convert the cases of the font.

import pandas as pd 
my_dict={'NAME':['Ravi','Raju','Alex']}
df = pd.DataFrame(data=my_dict)
print(df.NAME.str.upper()) # convert Lower case to Upper case 

0    RAVI
1    RAJU
2    ALEX

lower() : Upper case to Lower case

import pandas as pd 
my_dict={'NAME':['Ravi','Raju','Alex']}
df = pd.DataFrame(data=my_dict)
print(df.NAME.str.lower())

0    ravi
1    raju
2    alex

title(): First char of each word to Upper case

import pandas as pd 
my_dict={'NAME':['ravi ron','raju geek','alex john']}
df = pd.DataFrame(data=my_dict)
print(df.NAME.str.title())

0     Ravi Ron
1    Raju Geek
2    Alex John

capitalize(): First Char to Upper case

import pandas as pd 
my_dict={'NAME':['ravi ron','raju geek','alex john']}
df = pd.DataFrame(data=my_dict)
print(df.NAME.str.capitalize())

0     Ravi ron
1    Raju geek
2    Alex john

swapcase(): Convert Lower to Uppper and Upper to Lower case

import pandas as pd 
my_dict={'NAME':['Ravi Ron','Raju Geek','Alex John']}
df = pd.DataFrame(data=my_dict)
print(df.NAME.str.swapcase())

0     rAVI rON
1    rAJU gEEK
2    aLEX jOHN

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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