Message 264769 - Python tracker
There is other bug at the last week of a year:
import datetime
for i in range(25, 32):
print(datetime.date(1906, 12, i).strftime('%Y %U %w %G %V %u'))
for i in range(1, 10):
print(datetime.date(1907, 1, i).strftime('%Y %U %w %G %V %u'))