Pydantic: Use datetime with format 'YYYY-MM-DD'

Created on 24 Apr 2019 · 1Comment · Source: samuelcolvin/pydantic

Hi, I'd like to use the a datetime object (not date) with input string format YYYY-MM-DD but it is not supported. What would be the best way to obtain this behavior? Do I need to make a custom data type? Thanks

question

Source

ralbertazzi

Most helpful comment

use a validator:

class MyModel(BaseModel):
  foobar: datetime

  @validator('foobar', pre=True)
  def parse_foobar(cls, v):
    if isinstance(v, str):
      return datetime.strptime....  # maybe needs try/except
    return v

samuelcolvin on 24 Apr 2019

👍2

>All comments

use a validator:

class MyModel(BaseModel):
  foobar: datetime

  @validator('foobar', pre=True)
  def parse_foobar(cls, v):
    if isinstance(v, str):
      return datetime.strptime....  # maybe needs try/except
    return v

samuelcolvin on 24 Apr 2019

👍2

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