Python Notes 學習筆記 📝
有時候想找一個東西(寫法),但當下卻忘記關鍵字,所以整理一篇學習筆記,要找資料的時候也比較方便。
有些是網路上找的範例,然後自己再修修改改,或是去參考一些 Python-Patterns , Python Anti-Patterns 。
範例程式會盡量遵守 PEP 8 -- Style Guide for Python Code
歡迎大家一起討論〜
筆記會持續更新〜
global_tutorial.py - global tutorial
globals_tutorial.py - globals tutorial
repr_tutorial.py - repr tutorial
assert_tutorial.py - assert tutorial
str_find_tutorial.py - str_find tutorial
rjust_ljust_tutorial.py - str rjust ljust tutorial
attribute_obj.py - setattr() , getattr() , hasattr()
check_is_in_list.py - 檢查目標是否在 list 裡
datetime_tutorial.py - datetime , monthrange , timestamp
defaultdict_tutorial.py - defaultdict
counter_tutorial.py - counter
namedtuple_tutorial.py - namedtuple
dictionary_using_items.py - dictionary.items()
dictionary_get.py - dictionary get()
set_tutorial.py - set tutorial
dictionary_update.py - dictionary update()
tuple_tutorial.py - tuple
eafp.py - EAFP coding style
enumerate_tutorial.py - enumerate
filter.py - filter
format.py - format
function_default.py - function default value
isdigit.py - isdigit()
isinstance.py - check type
join.py - join
json_tutorial.py - json.loads()
convert_class_object_to_json.py
convert_json_to_class_object.py
kwargs.py - **kwargs , *arg - youtube tutorial - What is **kwargs *args
lambda.py - lambda
list_tutorial.py - list tutorial
loop_if_else_break.py - if not add break , will run more meaningless loop
map_tutorial.py - map tutorial
OrderedDict_tutorial.py - OrderedDict
MappingProxyType_tutorial.py - MappingProxyType
parse_dateutil.py - dateutil.parser
property_decorator.py - property_decorator
raise_an_exception_from_function_call.py - it is better to raise an exception that can be caught by the caller instead.
range.py - range
reduce.py - reduce
setdefault_tutorial.py - setdefault
sort.py - sort
sorted.py - sorted
iter_tutorial.py - iter tutorial
iter_another_trick_tutorial.py - iter another trick tutorial
iterator_in_tutorial - in 也會消費 iterator
__iter__tutorial - __iter__ tutorial
yield_tutorial.py- yield tutorial
yield_from_tutorial.py- yield from tutorial
Enum_tutorial.py- Enum tutorial
strtobool_tutorial.py - strtobool
underscore_variable.py - underscore variable
use_unpacking.py - use unpacking
using_a_mutable_default_value_as_an_argument.py - Be careful with mutable default arguments ( lists or dictionaries ) - youtube tutorial
zip_tutorial.py - zip
staticmethod_tutorial.py - staticmethod tutorial
classmethod_tutorial.py - classmethod tutorial
decorator_tutorial.py - decorator 裝飾器
decorator_inspect.py - decorator inspect tutorial
with_as_tutorial.py - with as tutorial
context_manager_tutorial.py - context manager
suppress_tutorial.py - context manager - suppress - youtube tutorial - python 教學 - 什麼是 suppress
configparser_tutorial - ConfigParser tutorial,可參考 https://docs.python.org/3/library/configparser.html
decimal_tutorial.py - decimal tutorial
copy_tutorial.py - copy_tutorial
sum_tutorial.py - sum_tutorial
math_tutorial.py - math_tutorial
built-in-functions_tutorial.py - Built-in Functions tutorial
division_operators_tutorial.py - division operators tutorial
reduce_use_for_loop_tutorial_1.py - reduce_use_for_loop_tutorial_1
reduce_use_for_loop_tutorial_2.py - reduce_use_for_loop_tutorial_2
nested_loop_tutorial.py - nested_loop_tutorial
dict.fromkeys_tutorial.py - dict.fromkeys tutorial
escape_tutorial.py - html.parser ( escape ) tutorial
urllib_parse_quote_tutorial.py - urllib.parse quote tutorial
pickle_tutorial.py - pickle tutorial
__reduce__tutorial.py - __reduce__ tutorial
zipfile_tutorial.py - zipfile tutorial
unicodedata_tutorial.py - unicodedata ( control character ) tutorial
translate_tutorial.py - translate tutorial
re_tutorial.py - re tutorial
fnmatch_tutorial - fnmatch tutorial
is_integer_tutorial.py - float is_integer tutorial ( TestCase )
remove_trailing_zeros_tutorial.py - decimal remove trailing zeros tutorial ( TestCase )
itemgetter_tutorial.py - itemgetter tutorial
groupby_tutorial.py - itertools groupby tutorial
groupby_tutorial_find_consecutive numbers.py - find consecutive numbers in list by groupby tutorial
python-decouple-tutorial - python decouple tutorial
dj_database_url_tutorial - dj-database-url tutorial ( for django )
pandas_tutorial - pandas tutorial
random_tutorial.py - random tutorial
__str__tutorial.py - __str__ tutorial
__len__tutorial.py - __len__ tutorial
__call__tutorial.py - __call__ tutorial - youtube tutorial - What is the __call__ in python
__getattr__tutorial.py - __getattr__ and __getattribute__ tutorial
__getitem__tutorial.py - __getitem__ and __setitem__ tutorial
__new__tutorial.py - __new__ tutorial
__get__tutorial.py - 參考 what_is_the_Descriptor
queue_tutorial.py - queue tutorial
methodcaller_tutorial - methodcaller tutorial - youtube tutorial - python 教學 - 什麼是 methodcaller
str_startswith_tutorial.py - str.startswith() tutorial
logging_tutorial.py - logging tutorial
operator_or_xor_tutorial.py - or xor tutorial
operator_add_tutorial.py - operator.add tutorial
operator_mul_tutorial.py - operator.mul tutorial
itertools_tutorial.py - itertools tutorial
itertools_islice_tutorial.py - itertools.islice tutorial
itertools_tee_tutorial.py - itertools.tee tutorial
base64_tutorial.py - base64 encode decode tutorial
bytesio_tutorial.py - bytesio tutorial
stringio_tutorial.py - stringio tutorial
string_constants_tutorial.py - string constants tutorial
functools_partial_tutorial.py - functools.partial tutorial
try_except_tutorial.py - try except tutorial
try_finally_tutorial.py - try except finally tutorial
user_defined_exceptions_tutorial.py - User-defined Exceptions tutorial
weakref_tutorial.py - weakref tutorial
hashlib_tutorial - hashlib (MD5 SHA-1 簽名) tutorial
bcrypt_tutorial.py - bcrypt hash salt tutorial
hmac_sha256_tutorial.py - hmac sha256 tutorial
pycryptodome_tutorial - pycryptodome 完成 RSA 簽名驗簽, RSA 加解密
aes_tutorial.py - pycryptodome 完成 AES CBC 加解密
pyjwt_tutorial - jwt 教學
pyotp - 實作 two-factor (2FA) or multi-factor (MFA)
assignment_expressions_tutorial - Youtube Tutorial - 海象運算符 PEP 572 – Assignment Expressions - python3
match_case_tutorial.py - match case statement was introduced in Python 3.10
dataclasses_tutorial.py - dataclasses tutorial
importlib_tutorial - 動態 import lib
mock_tutorial - mock 教學
redis_tutorial - redis 教學
pika_tutorial - pika for Rabbitmq 教學
thread_process_tutorial - thread, process 教學
concurrent_futures_tutorial - concurrent futures 教學
asyico_tutorial - asyico 教學
aiohttp_tutorial - aiohttp 教學
pathlib_tutorial.py - pathlib 教學
colorama_tutorial.py - 讓 python 輸出 terminal 有顏色
cachetools_tutorial.py - cachetools 教學
python_circular_import - youtube tutorial - What is Python Circular Imports
What happens when you type an URL in the browser and press enter - youtube tutorial - What happens when you type an URL in the browser and press enter
cap theorem - youtube tutorial - What is CAP theorem
what is the classmethod and staticmethod
what is the functools.lru_cache
what is the singledispatchmethod
what is the if __name__ == '__main__' in python
what is private and protected attribute
what is the python interpreter
type-hints-tutorial - PEP 484 Type Hints 介紹 - youtube tutorial - PEP 484 Type Hints 介紹
pydantic_tutorial - pydantic 介紹
vcr-tutorial - Youtube Tutorial - vcrpy 介紹教學 - 輕鬆把 request 錄下來
freezegun_tutorial.py - mock datetime
faker_tutorial.py - 產生假資料
decorator_lib.py - decorator lib tutorial
pytest_tutorial - pytest 教學
flake8 - linter 工具
black - 自動排版工具
isort - 排序 import 套件
pipx - 類似 linux 中的 apt, 更方便管理套件. - youtube tutorial - python 套件介紹
指定 python 版本
pipx install --python python3.8 flake8
查看目前安裝套件
pipx list
commitizen and pre-commit - 規格化 commit 以及 pre-commit
pip-audit - 檢查 packages 安全性.
首先, 不要用 sudo/admin 下載 packages.
pip install pip-audit
使用方法很簡單, pip-audit --fix 直接幫你更新有問題的 packages.
pyenv - 更好用的 python 管理虛擬環境工具(管理多版本) - Streamlit 教學, 搭配 Pyenv, UV 高效開發
pip-tools_tutorial - 幫你管理依賴套件的版本
uv - 超快的套件管理工具. - Youtube Tutorial - Streamlit 教學, 搭配 Pyenv, UV 高效開發
基本上,每個 python 檔案都可以直接執行。
python xxxx.py
範例
python defaultdict_tutorial.py
- Python 3.9
文章都是我自己研究內化後原創,如果有幫助到您,也想鼓勵我的話,歡迎請我喝一杯咖啡 😆
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MIT license