When To Use __repr__ vs __str__?

Harshit Jain Harshit Jain

Harshit Jain

发布日期: 2022年7月11日
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# When To Use __repr__ vs __str__
# Emulate what the std lib does:
>>> import datetime
>>> today = datetime.date.today()

# Result of __str__ should be readable:
>>> str(today)
'2022-07-11'

# Result of __repr__ should be unambiguous:
>>> repr(today)
'datetime.date(2022, 7, 11)'

# Python interpreter sessions use 
# __repr__ to inspect objects:
>>> today
datetime.date(2022, 7, 11)?

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