Regular expression to match start of filename and filename extension

Question

What is the regular expression to match strings (in this case, file names) that start with \'Run\' and have a filename extension of \'.py\'?

The regular expression s

Answer 1

Warning:

• jobscry's answer ("^Run.?.py$") is incorrect (will not match "Run123.py", for example).
• orlandu63's answer ("/^Run[\w]*?.py$/") will not match "RunFoo.Bar.py".

(I don't have enough reputation to comment, sorry.)