Python - Get Yesterday s date as a string in YYYY-MM-DD format

Question

As an input to an API request I need to get yesterday s date as a string in the format YYYY-MM-DD  I have a working version which is   yesterday   datetime date fromordinal datetime date today   toordinal  -1  report date   str yesterday year           -  if len str yesterday month      2 else  -0     str yesterday month           -  if len str yesterday day      2 else  -0     str yesterday day    There must be a more elegant way to do this  interested for educational purposes as much as anything else

User · Answer

gt  gt  gt  import datetime  gt  gt  gt  datetime date fromordinal datetime date today   toordinal  -1  strftime   F    2015-05-26

User · Answer

Calling  isoformat   on a date object will give you YYYY-MM-DD from datetime import date  timedelta  date today   - timedelta 1   isoformat

User · Answer

An alternative answer that uses today   method to calculate current date and then subtracts one using timedelta    Rest of the steps remain the same   https   docs python org 3 7 library datetime html timedelta-objects  from datetime import date  timedelta today   date today   yesterday   today - timedelta days   1  print today  print yesterday   Output   2019-06-14 2019-06-13

User · Answer

You Just need to subtract one day from today s date  In Python  datetime timedelta object lets you create specific spans of time as a timedelta object  datetime timedelta 1  gives you the duration of  quot one day quot  and is subtractable from a datetime object  After you subtracted the objects you can use datetime strftime in order to convert the result --which is a date object-- to string format based on your format of choice   gt  gt  gt  from datetime import datetime  timedelta  gt  gt  gt  yesterday   datetime now   - timedelta 1    gt  gt  gt  type yesterday                                                                                                                                                                                       gt  gt  gt  datetime datetime       gt  gt  gt  datetime strftime yesterday    Y- m- d    2015-05-26   Note that instead of calling the datetime strftime function  you can also directly use strftime method of datetime objects   gt  gt  gt   datetime now   - timedelta 1   strftime   Y- m- d    2015-05-26   As a function  def yesterday string False       yesterday   datetime now   - timedelta 1      if string          return yesterday strftime   Y- m- d       return yesterday

[python] Python - Get Yesterday's date as a string in YYYY-MM-DD format

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