Python Exercises: Extract the name from an Email address
Python String: Exercise-105 with Solution
From Wikipedia –
An email address consists of two parts, a local part[a] and a domain; if the domain is a domain name rather than an IP address then the SMTP client uses the domain name to look up the mail exchange IP address. The general format of an email address is [email protected], e.g. [email protected][192.168.1.2], [email protected]
Write a Python program to extract and display the name from a given Email address.
Sample Data:
("[email protected]") -> ("john")
("[email protected]") -> ("johnsmith")
("[email protected]") -> ("fullyqualifieddomain")
Sample Solution-1:
Python Code:
def test(email_address):
r = email_address.index("@")
return "".join(l for l in email_address[:r] if l.isalpha())
email_address = "[email protected]"
print("Original Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
email_address = "[email protected]"
print("\nOriginal Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
email_address = "[email protected]@example.com"
print("\nOriginal Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
email_address = "[email protected]"
print("\nOriginal Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
Sample Output:
Original Email: [email protected] Extract the name from the said Email address: john Original Email: [email protected] Extract the name from the said Email address: johnsmith Original Email: [email protected]@example.com Extract the name from the said Email address: disposablestyleemailwithsymbol Original Email: [email protected] Extract the name from the said Email address: fullyqualifieddomain
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Sample Solution-2:
Python Code:
def test(email_address):
data = email_address.split("@")[0]
result = ""
for i in data:
if i.isalpha():
result+=i
return result
email_address = "[email protected]"
print("Original Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
email_address = "[email protected]"
print("\nOriginal Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
email_address = "[email protected]@example.com"
print("\nOriginal Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
email_address = "[email protected]"
print("\nOriginal Email:", email_address)
print("Extract the name from the said Email address:")
print(test(email_address))
Sample Output:
Original Email: [email protected] Extract the name from the said Email address: john Original Email: [email protected] Extract the name from the said Email address: johnsmith Original Email: [email protected]@example.com Extract the name from the said Email address: disposablestyleemailwithsymbol Original Email: [email protected] Extract the name from the said Email address: fullyqualifieddomain
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Python Code Editor:
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Previous Python Exercise: Capitalize the first letter and lowercases the rest.
Next Python Exercise: Replace repeated characters with single letters.
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Python: Tips of the Day
Enum Class:
Here is another classy approach from Python, no pun intended. Python's enum class will let you create enum object members with constant and unique values which then can be listed, compared or used for identification.
Enum classes are also iterable so they can be iterated as well:
from enum import Enum class sports(Enum): volleyball = 1 soccer = 2 running = 3 football = 4 baseball = 5 boxing = 6 print(sports.baseball) print(repr(sports.baseball))
Output:
sports.baseball <sports.baseball: 5>
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