piotrkilczuk

layout poetry

export PYTHONSTARTUP=`pwd`/_pythonstartup.py
export MYOTHERVAR=foobarbaz

piotrkilczuk

import sys
from datetime import datetime
from os import getcwd
from pathlib import Path

from colorama import Fore


class Ps1:
    count: int

piotrkilczuk

$ PYTHONSTARTUP=./_pythonstartup.py ipython
Python 3.9.0 (default, Nov 19 2020, 14:06:03) 
Type 'copyright', 'credits' or 'license' for more information
IPython 7.24.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: session
Out[1]: <sqlalchemy.orm.session.Session at 0x7f1efed0ee50>

In [2]: session.execute("SELECT * FROM users").fetchall()
Out[2]: [(1, 'johndoe', 'somehash')]

piotrkilczuk

import sys


def boostrap():
    print("Hello world!")


sys.__interactivehook__ = boostrap

piotrkilczuk

$ PYTHONSTARTUP=./_pythonstartup.py python
Python 3.9.0 (default, Nov 19 2020, 14:06:03) 
[GCC 7.5.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
Hello world!
>>>

piotrkilczuk

print("Hello world!")

piotrkilczuk

from sqlalchemy import create_engine
from sqlalchemy.orm import Session


engine = create_engine("sqlite:///mydatabase.db")
connection = engine.connect()
transaction = connection.begin()
session = Session(bind=connection)

piotrkilczuk

>>> from fbd.championship.factories import PlayerFactory, ClubFactory
>>> club = ClubFactory()
>>> player_with_a_picture = PlayerFactory(club=club, picture__filename='chuck.png')
>>> player_with_a_picture.picture
<ImageFieldFile: player/picture/68/chuck.png>

piotrkilczuk

class PlayerFactory(DjangoModelFactory):

    # other declarations removed for brevity

    @post_generation
    def picture(self, create, extracted, **kwargs):
        if extracted:
            self.picture = extracted
        elif kwargs:
            assert 'filename' in kwargs, 'You need to pass in the filename'

piotrkilczuk

>>> club = ClubFactory()
>>> players = PlayerFactory.create_batch(10, club=club)
>>> player_male = next(filter(lambda p: p.sex == SEX_MALE, players))
>>> player_female = next(filter(lambda p: p.sex == SEX_FEMALE, players))
>>> player_male.sex, player_male.dob, player_male.government_id
('M', datetime.datetime(1998, 4, 20, 2, 14, 33, tzinfo=<UTC>), 9804200019)
>>> player_female.sex, player_female.dob, player_female.government_id
('F', datetime.datetime(1991, 2, 3, 16, 41, 55, tzinfo=<UTC>), 9102030002)