Open the context
Choose the project folder and name the files or behavior involved.
Workflows
Coding workflows · Gregorian leap-year rules
03
A concrete starting point
Classify Gregorian years from 1 through 9999 as leap years or common years. Check 1900, 2000 and both range endpoints, rejecting year zero, fractions and Boolean values.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Gregorian leap-year rules
A concrete starting point
def is_leap_year(year):
if type(year) is not int or not 1 <= year <= 9999:
raise ValueError("year.range")
return year % 4 == 0 and (year % 100 != 0 or year % 400 == 0)The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.