PYTHON LESSON
Regular Expressions
Regex is pattern matching for text.
Build pattern incrementally.
Greedy matching surprises.
Read this next
You will study Regular Expressions. It belongs to the Advanced Engineering phase.
Remember this:
Regex is pattern matching for text.
Practice step by step. Do not rush. Each run should show you something new.
Tip:
Build pattern incrementally.
Avoid this:
Greedy matching surprises.
Your challenge:
Extract email ids from sample paragraph.
Go to the challenge lab below. Fix errors until the output looks right. Then press the green button to complete the topic.
Example code
Copy this example if it helps. Change it so it matches Regular Expressions.
# Topic: Regular Expressions
def main():
sample = "edit me"
# TODO: apply Regular Expressions concept here
result = sample
print("Result:", result)
if __name__ == "__main__":
main()
Challenge
Extract email ids from sample paragraph.
Before you can finish: your output should include at least 16 characters; at least 1 non-empty line(s); no crash traceback—fix errors until the program runs cleanly.
Use Run. Read the output. Change your code until the task is done.
Starter reference
# Challenge starter for Regular Expressions
def solve():
# Write your solution here
pass
print("Update solve() and run")Your code
The first Run may load Python in your browser (one-time). Later runs are faster.