Tab Mapper

The tab mapper is a handy little tool that will render a guitar tab file with graphic chord diagrams displayed alongside. This comes in handy for people who just don't have every single chord shape memorized. Just plug in the web site address of a valid .tab or .crd file and hit "Go". In general, the tab mapper does a better job with printer friendly URLs. If there is more than one way to play a chord, the tab mapper will choose the most common shape. To see other fingerings, click on the chord diagram and you will be taken to the chord calculator.

C chord {x 3 2 0 1 0} chord

Original file located @ https://lajfhak.ru-land.com/stati/python-nastroyka-pod-svoy-proekt-v-linux-prostoy-sposob.

Show me scales that sound good with the chords in this song: C.

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?????????, ???????? ????????

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Python ????????? ??? ???? ?????? ? Linux: ??????? ??????

?????????? ?????????

Today's:

  • Python ????????? ??? ???? ?????? ? Linux: ??????? ??????
  • ??? ?????? ?? ??????? ? ????????. ??? ???????? ??????? ??????? ? ??????????
  • ????????? Squid ? Ubuntu 16.04: ??????????? ??? ??????????
  • ?????????? ??????? ??? ??????????: ?? ???? ?? ??????????
  • Amazon's Review Removal Policy: What You Need to Know
  • ??????? ? ???????? ???? (????? ???????).
  • ??? ??????? ???, ????? ???? ?????? ??????? ????

07.11.2024 ? 22:33
??????
??????????
  1. Python ????????? ??? ???? ?????? ? Linux: ??????? ??????
  2. ????????? ??????? ? ??????
  3. ??? ????? Python ? ??? ???? ?? ????????????
  4. ??? ?????????? Python ?? Linux
    • ???????? ???????????? ????????? Python ?? Linux
    • ????????? ????? ??????????
  5. ??? ?????????, ??? Python ?????????? ?? Linux
    • ?????????? ???????? Python
    • ???????? ?????? Python
    • ??????????? ???????? ?????? Python
    • ??????
  6. ??? ??????? ?????? ?? Python
    • ????? ????? ????????? ????? ??????????
    • ????????? Python
    • ????? IDE ??? ????????? ????
    • 1. IDLE (??????????????? ????? ?????????? ? ????????):
    • 2. PyCharm:
    • 3. Visual Studio Code (VSCode):
    • ??????????
  7. ??? ????????? ????????? ?????????? ??? ??????? ?? Python
  8. ??? ??????? ????? ? ????? Python
    • ?????? ???? Python: ????????????? ????? ? CMD
    • ?????? Python: ????????????? ????? ? IDLE
    • ??? ????????? ?????????? Python ? ???????? ???????
    • ?????? ??????:
  9. ??? ????????? Python-??????? ?? ????????? ??????
  10. ??? ???????? ?????????? ? ?????? ?? Python

Python ????????? ??? ???? ?????? ? Linux: ??????? ??????

Ubuntu 20.04 ? ?????? ?????? Debian Linux ???????????? ? ?????????????????3. ????? ?????????, ??? ???? ?????? ?????????, ???????? ????????? ?????? ???????:

  1. sudo apt update

????? ???????? ??????, ????????????? ? ????? ???????, ????? ?????????, ??? ? ??? ??????????? ????????? ??????:

  1. sudo apt -y upgrade

????-y??????????, ??? ?? ???????? ?? ????????? ???? ?????????, ?? ? ??????????? ?? ????? ?????? Linux ??? ????? ????????????? ????????????? ?????????????? ???????? ?? ???? ?????????? ????? ???????.

????? ?????????? ???????? ?? ????? ????????? ??????3, ????????????? ? ???????, ??????:

  1. python3 -V

?? ???????? ????? ? ???? ?????????, ??????? ??????? ??? ????? ??????. ???? ??? ????? ????? ?????????????, ????? ????? ???????? ?????:

Output

Python3.8.10

????? ????????? ???????????? ???????? ??? Python, ??????? ????????? pip, ??????????, ??????? ????? ????????????? ? ????????? ???????????? ????????, ??????? ?? ????? ???????? ???????????? ? ????? ???????? ??????????. ?? ?????? ?????? ?????? ? ??????? ??? ???????, ??????? ????? ?????????? ? ??????? pip, ???????? How To Import Modules in3.

  1. sudo apt install -y python3-pip

??????????? ??????????, ??????:

  1. pip3 installpackage_name

?????package_name????? ?????????? ? ?????? ?????? ??? ?????????? Python, ???????? Django ??? ???-?????????? ??? NumPy ??? ??????? ??????????. ???????, ???? ?? ?????? ?????????? NumPy, ?? ?????? ??????? ??? ? ??????? ???????pip3 install numpy.

???? ??? ????????? ??????? ? ???????????? ??????????, ??????? ????? ??????????, ????? ?????????, ??? ? ??? ???? ???????? ????????? ??? ????? ????? ????????????????:

  1. sudo apt install -y build-essential libssl-dev libffi-dev python3-dev

????? ?????????? ????????? pip ? ?????? ???????????? ?? ????? ????????? ??????????? ????? ??? ????? ???????? ??????????.

????????? ??????? ? ??????:

?????? 1: ??? ????? ???????, ????? ?????????? Python ? Linux

?????: ????? ?????????? Python ? Linux, ??? ????? ??????? ???????? ? ?????? ??????? "sudo apt-get install python3", ????? ???? ??????? ????????????? ??????? ? ????????? Python. ???? ?? ??????????? ?????? ??????????? Linux, ?? ??????? ????? ??????????. ????????, ??? Fedora ?? ?????? ???????????? ??????? "sudo dnf install python3".

?????? 2: ??? ?????????, ??? Python ??????????

?????: ????? ?????????, ??? Python ??????????, ?? ?????? ??????? ???????? ? ?????? ??????? "python3 --version". ???? Python ??????????, ?? ??????? ??????? ?????? Python. ???? ?? ??????? ????????? ?? ??????, ?????? Python ?? ??????????.

?????? 3: ??? ??????? ????? ?????? ? Python

?????: ????? ??????? ????? ?????? ? Python, ??? ????? ??????? ????? ??? ??????? ? ??????? ?? ? ????????? ?????????. ????? ?? ?????? ??????? ???? ? ??????????? .py, ? ??????? ?? ?????? ???????? ??? ?? Python. ????????, ?? ?????? ??????? ???? "main.py" ? ?????? ?????? ???.

?????? 4: ??? ????????? ?????? ? Python

?????: ????? ????????? ?????? ? Python, ??? ????? ??????? ????????, ??????? ? ????? ??????? ? ?????? ??????? "python3 main.py", ??? "main.py" - ??? ??? ?????? ????? ? ????? ?? Python. ???? ??? ?????? ???????, ?? ??????? ??????? ????????? ?????????? ????.

?????? 5: ??? ???????? ?????????? ? ??????

?????: ????? ???????? ?????????? ? ??????, ??? ????? ?????????? ?????????? ? ??????? pip. ??? ????? ?? ?????? ??????? ????????, ??????? ? ????? ??????? ? ?????? ??????? "pip3 install ??????????_???", ??? "??????????\_???" - ??? ??? ??????????, ??????? ?? ?????? ??????????. ????? ????????? ?????????? ?? ?????? ?? ???????????? ? ????? ???????.

?????? 6: ??? ????????? ????????? ?????????? ? Python

?????: ????? ????????? ????????? ?????????? ? Python, ??? ????? ?????????? ??????????????? ????? ?????????? (IDE), ????? ??? PyCharm ??? Visual Studio Code. ????? ????????? IDE ?? ?????? ??????? ????? ??????, ???????? ????? ? ??????????, ????????? ?????????????? ???? ? ?????? ??????.

?????? 7: ??? ????????? ??????? ???? ? Python

?????: ????? ????????? ??????? ???? ? Python, ??? ????? ???????????? ??????????????? ????? ?????????? (IDE), ????? ??? PyCharm ??? Visual Studio Code. ? IDE ?? ?????? ????????? ????? ????????, ??????????? ???????? ??????????, ????????? ?????????? ???? ? ?????? ??????.

?????? 8: ??? ????????? ?????????????? ???????????? ???? ? Python

?????: ????? ????????? ?????????????? ???????????? ???? ? Python, ??? ????? ?????????? ?????????? ??? ????????????, ????? ??? pytest ??? unittest. ????? ????????? ?????????? ?? ?????? ???????? ????? ??? ?????? ???? ? ????????? ?? ? ??????? ??????? "pytest" ??? "python -m unittest". ???? ??? ????? ??????? ???????, ?? ??????? ??????? ????????? ?? ??????.

??? ????? Python ? ??? ???? ?? ????????????

Data Science ? ???????? ????????. ??? ??? ??????????? IT ????? ??????? ???? ? ??????. ????? ? ?????? ??????????? ? ????????? ??????? ???????? ?????????? ?? ???? ?????? , ? ???????? ???????? ? ? ?????????? ???????????? ??????????, ????????? ??????? ?? ??? ? ?????? ?????? ????????. ? Data Science ?????????? Python ??? ????????? ??????? ? ???????? ??????, ?????? ? ????????? ?????????????? ??????????, ?? ???????????? ? ???? ????????, ???????? ? ?.?. ? ??????? ?????????? Python ML ???????????????? ???????????, ??????, ????????? ??????, ?????????????? ????????????? ??? ? ????, ????????? ???????? ????????.

IT-???????

?????????? ?????????????????? ??????
???????? ???? ? ?????????? ???? ??????????? ? IT. ??????????? ?????, ????????? ??????? ? ?????? ???? ???????? ????? ?????????? ????? ? ????????? ????????????

??????????? ?????????

IT-???????

???-??????????. ?????? ??????? ????????-????????, ????? ??? Google, Facebook*, ????????????? ?? Python ???? ????? ????????? ???????, ????????, Instagram*, YouTube, Dropbox ? ?.?. ???? ???? ????????? ????? ???-?????????? ?? ??????? ???????, ?????? ??? ??? ???????? ?????????? ???????? ????????? ??????? ??? ??? ??? ?????????? ??????? ????????? ???????. ?? ???? ????? ???????? ????????????? Python ?????? ??????????? ?????????? ????????? ? ?????????? ?????????????? ??? ???????? ??????, ?????????? ? ????????? ???-??????????.

?????????? ? ???????????? ??. ??????????? Python ???????????? ?????????????? ? ?????????????? ??? ?????? ? ??????????? ??????, ?????????????? ??????, ?????????? ?????????? ???????????? ???????????, ?????????? ????????? ? ?.?. ????? ????, ? ??????? ???? ?????????? ???????????? «??????» ?????????????? ???????? ???????. ????? ?? ???? ????? ????????? ???????? ??????? , ??????????? ????????? ???????? ????????????? ??. ???????????? ?????????? ???????? (????????, IBM, Hewlett-Packard, Intel) ???? ?????????? Python ??? ???????????? ????? ?????????.

??? ?????????? Python ?? Linux

? ?????? ??? ??????? ?????????? Python ????????? ????????. ? ???? ?????? ?? ????????? ? ???, ??? ????????? ??????? ??? ????????? ?????????, ????? ? ?????????? ? ??? ?? ????????? ??????? ??????????. ??? ????? ???????? ?????????? ????????? Python ?? Linux.

????? ????????? ?? ????????? ? ????????? ??????? ?? ??? ?????? ? Python .

    ??? ????????? ????? ???????????? ????????? ?????? ???????????? Ubuntu, ?? ???????? ????? ???????????? ??? ?????? ????????????.

    ???????? ? ????????? Python  ?? Linux ???????? ????? ??????. ????? ????? ?????????, ??? ?? ????? ????????????? Python ?????? 3 ??? ??????????????.

    ?????? ????? ??? ?????????? ?????????? ???????? ???????? ?????? ????????????.

  • Debian, Ubuntu ? ?????????? ?? ??? ???????????? ? apt
  • CentOS, Red Hat, Fedora ? rpm
  • ARCH Linux ? pacman
  • OpenSUSE ? SUSE Linux ? zypper

????? ??????? ????????? ???????? ? Linux ? ???????? ?????? ????????? ???????. ????????? ???????? ???????? apt ??? ?????, ?????????? ?????? ???????:

sudo apt update

????? ????? ???????????? ??????? ?????? ????????? ????????? ??? ????????? ?????? Python3 :

sudo apt install python3 -y

??? ??????? ????????? ????????? ?????? Python , ???? ??? ??? ?? ???????????.

?????? ?????????? ?????????? pip ? ????? ??? ???????? ??????? Python.

sudo apt install python3-pip -y

???????? ???????????? ????????? Python ?? Linux

?????? ????????, ?????????? ?? Python ?????????. ??? ????? ????? ???????? ? ??????? ????? ???????:

python3

????? ?????? ???? ?????:

?? ????????? ?????? ? ????????????? ??????, ?????? ????? ????????:

exit() pip -V

???? ?? ??????? ?????? pip ? ??? ??????????? ?????????.

????????? ????? ??????????

?????????? ???????? ?????????????. ?? ???? ?????????? ?????-???? ???????? ???? ? ?????? ????????? ????? ??????? ???????, ??? ? ????????? ?? ?????????.

???? ????????? ????? ?????????? ?????????? ??? Python :

  • Visual Studio Code   ? ??????????? ????????? ??? ????? ????? ?????? (Sublime Text, Atom);
  • .

?? ????? ????????????? ????????? Visual Studio Code , ????????? Py?harm  ????? ???????????? ? ?????????????????? ?????????? ? ???????? ???? ?????????. ?? ?? ?????? ???????????? ????? ?? ?????????.

??? ?????????, ??? Python ?????????? ?? Linux

Python ? ???? ?? ????? ?????????? ?????? ???????????????? ? ????. ?? ???????????? ??? ?????????? ???-??????, ????????? ????????, ????????? ????????, ??????? ?????? ? ??????? ???????.

? ???? ?????? ???????????, ??? ? ??????? ????????? ?????? ?????????, ????? ?????? Python ??????????? ? ????? ???????????? ???????. ??? ????? ???? ??????? ??? ????????? ??????????, ??????? ????????? ???????????? ?????? Python.

?? ????? ??????? ???, ??? ??????????? ???????? ??????????, ????? ?????? Python ??????????? ? ???????, ? ??????? ??????????? ?????? Python. ????????, ??? ????????? ????????? Python ??? ?????????? ??????????, ???????????? ?? ???????? ?????? Python, ????????????? ?? ?????? ????????????.

?????????? ???????? Python

Python ??????????. ?????? ??????? ? ??????? ??????? ???????????? ?? ????????? ?????:

MAJOR.MINOR.MICRO

    MAJOR? Python ????? ??? ???????? ??????, ??????? ?? ????????? ??????????: Python 2 ? Python 3. ????????,3.5.7,3.7.2?3.8.0???????? ?????? ???????? ?????? Python 3. MINOR? ??? ??????? ???????? ????? ??????????? ? ???????. ????????,3.6.6,3.6.7?3.6.8???????? ?????? ?????????????? ?????? Python 3.6. MICRO? ????? ??????????? ???????? ????????? ??????????? ?????? ? ?????????.

? ???????? ??? ?????????? ???? ?????????????? ?????????????. ??? ????????? ?????????????? ?????????? ???????? ???????????? Python.

???????? ?????? Python

Python ?????????????? ?????????? ? ??????????? ????????????? Linux ? macOS. ? Windows ??? ?????????? ??????? ? ??????????.

????? ??????, ????? ?????? Python ??????????? ? ????? ???????, ????????? ???????python --version???python -V:

python --version

??????? ?????????? ?????? Python ?? ?????????, ? ?????? ??????2.7.15. ??????, ????????????? ? ????? ???????, ????? ??????????.

Python 2.7.15+

?????? Python ?? ????????? ????? ?????????????? ????? ??????????, ? ???????/usr/bin/python?????????? ? ???????? ?????????????? ? ?????? ????????.

? ????????? ????????????? Linux ???????????? ??????????? ????????? ?????? Python. ?????? ???????? ???? Python 3 ??????????python3, ? ???????? ???? Python 2 ??????????python???python2, ?? ??? ????? ???? ?? ??????.

?? ?????? ?????????, ?????????? ?? ? ??? Python 3, ??????:

python3 --version

Python 3.6.8

????????? Python 2 ????????????? ? 2020 ????. Python 3 ? ??? ????????? ? ??????? ?????.

?? ?????? ????????? ???? ?????? ????????? ???????? ???????? Python ???? ?????? 3.8.x. ?????? ?????, ? ????? ??????? ??????????? ????? ?????? ?????? Python 3.

???? ?? ?????? ?????????? ????????? ?????? Python, ????????? ??????? ?? ???????????? ???? ???????????? ???????.

??????????? ???????? ?????? Python

Python 2 ? Python 3 ????????????? ??????. ???, ?????????? ?? Python 2.x, ????? ?? ???????? ? Python 3.x.

??????, ????????? ?? ???? ??????? Python, ????????????? ????????? ????????? ? ???????.sys.version_info????????? ?????????? ?????? Python, ????????????? ? ???????. ??? ?????? , ??????? ???????? ???? ??????? ??????:major,minor,micro,releaselevel?serial.

????????, ? ??? ???? ????????, ??? ???????? ????????? Python ?????? ?? ???? 3.5, ? ?? ?????? ?????????, ????????????? ?? ??????? ???????????. ?? ?????? ??????? ???, ?????? ????????major?minor??????:

???? ?? ????????? ?????? ? ?????????????? Python ?????? ???? 3.5, ?? ?????? ????????? ?????????:

This script requires Python 3.5 or higher! You are using Python 2.7.

????? ???????? ??? Python, ?????????? ??? ??? Python 3, ??? ? ??? Python 2, ??????????? ??????. ?? ????????? ????????? ???, ??????????? ? Python 3.x, ??? Python 2.

??????

??????, ????? ?????? Python ??????????? ? ????? ???????, ????? ??????, ?????? ???????python --version.

??? ??????? ?????? ?? Python

????????? ????? ????? ?????????? - ??? ????????? ?????? ??? ? ????? ???? ? ??????????? ??????? ????????????? Python. ? ???? ?????? ?? ???????? ??? ????? ??????? ????????? ????? ??????? ??? ?????? ? Python - ?? ????????? ?????????????? Python ?? ?????? ?????????? ????? ?????????? ? ??????????????? ????????? ?????????? (IDE).

????? ????? ????????? ????? ??????????

?????? ??? ?? ????????? ? ??????????? ???????, ????? ????????, ?????? ????????? ????? ??? ?????. ???? ????? ?????????? - ??? ?????, ??? ?? ?????? ??????, ??????????? ? ????????? ???? Python-???. ?????? ??????????? ????? ???????????? ??????????? ? ???????????? ??????, ???????? ??? ??????????????? ?? ???????????, ? ?? ?? ??????? ??????????? ???????.

????????? Python

Python - ??? ???? ???????????????? ? ???????? ???????? ?????, ? ??? ????? ?? ??????????? ???????? ???????? ?????????. ???????? ???? ????? ??? ????????? Python ?? ???? ???????:

    ????????? Python: ???????? ??????????? ???? Python ?? ?????? python.org . ??? ?? ??????? ????????? ?????? Python, ????????? ??? ????????. ???????? ?????????? ?????????? ??? ????? ???????????? ??????? (Windows, macOS ??? Linux).

    ????????? ??????????: ?????? ???????? ?? ?????????? ???????????, ????? ?????? ??????? ?????????. ??????????? ?????????, ??? ?? ????? ????????? ?????????? ?????? "???????? Python ? PATH". ???? ??? ?????, ????????? ?? ???????? ??? ????? ????????? Python ?? ????????? ??????.

    ????????? ?????????: ???????? ????????? ?????? ??? ???????? ? ???????

    python --version

    ???

    python3 --version

    (? ??????????? ?? ????? ???????). ?? ?????? ??????? ?????? Python, ??????? ?? ??????????, ??? ???????????? ??????? Python ?? ????? ???????.

????? IDE ??? ????????? ????

????? ????????? Python ??? ????? ?????????? ????? ?????????? ??? ????????? ? ?????????? ????? Python-?????. ??? ????????? ????????? ??? ????????????:

1. IDLE (??????????????? ????? ?????????? ? ????????):

  • IDLE ???????????? ?????? ? ?????????? Python, ??? ?????? ??? ????? ?????????.
  • ??? ??????? ? ?????? ????? ??????????, ?????????? ??? ??????????.
  • ?? ?????????? ???????, ????? ??? ?????????????? ???? ? ????????? ??????????.

2. PyCharm:

  • PyCharm - ??? ?????????? ?????????????????? ????? ?????????? Python, ????????????? JetBrains.
  • ???????? ?????????? ?????? Community Edition ? ???????? ????????? ? ??????? Professional Edition ? ???????????? ?????????????.
  • PyCharm ????????????? ???????????????? ?????????????? ????, ??????? ? ??????????????? ????????? Git.

3. Visual Studio Code (VSCode):

  • VSCode - ??? ????????????? ? ?????????? ???????? ???? ?? Microsoft.
  • ?? ???????????? ??????? ?????? ?????? ????????????????, ??????? Python.
  • ?? ?????? ????????? ??? ???????????????? ? ??????? ?????????? Python, ????? ??? "Python" ?? Microsoft ??? "Python - JetBrains" ??? ?????, ???????? ?? PyCharm.
  • Jupyter Notebook - ??? ????????????? ???-?????, ?????????? ??? ?????? ? ??????? ? ????????????.
  • ??? ????????? ????????? ? ???????? ??????????? ? ????? ?????, ???????????, ?????????????? ? ???????.
  • Jupyter Notebook ??????? ???????? ??? ???????????? ?????? ? ???????.

???????? ????? ?????????? ??? ???????? ???? ? ??????????? ?? ????? ???????????? ? ????????????. ?????????? ????? ???????? ? IDLE ??? VSCode ??-?? ?? ????????, ? ?? ????? ??? ????? ??????? ???????????? ????? ??????? PyCharm ??? Jupyter Notebook ? ??????????? ?? ????? ????????.

??????????

????????? ????? ?????????? Python - ??? ?????? ??? ?? ???? ? ???????? ????????????????. ??? ???????????? ?????????? ????????? ??? ?????????, ???????????? ? ??????? Python-????. ??? ?????? ? ??? ?????????? Python ? ??????? ????? ?????????? ??? ???????? ????, ??????? ??? ????????, ?? ?????? ??????? ? ????????? ????? ? ????? ???? ???????? Python. ??????? ?? ?????? ???????? ????????, ? ??????? ?? ?????????? ???????? ????????? Python ? ?????????? ??????? ????. ???????? ???????????!

??? ????????? ????????? ?????????? ??? ??????? ?? Python

?????? ???????? ??????

???? ??????, ? ??????? ?? ?????? ??????? ???? ? Python. ????????? ???? ????? ??????? ?? ????, ??? ?? ?????????? ???????????? ???? ??? ????? ?????? ?? ?????? ?????? (??????????) ?? (?) ????. ???? ????? ??????????? ??? ???????? ????? ? ??????? ???????????open(), ????? ???????? ?????????? ? ????????? ???????.

??????? ????????? ?? ????????? ?? ????????? ?????????? ???????? ???????:

    w: ????????? ???? ??? ?????? ? ??????? ????? ????, ???? ?? ??? ?? ??????????. ???? ???? ??????????, ?? ?????????????? ???. w+: ????????? ???? ??? ??????, ?? ????? ??? ?????? ? ????????, ???? ?? ?? ??????????. ???? ???? ??? ??????????, ?? ?????????????? ???. r: ????????? ???? ?????? ??? ??????. rb: ????????? ???? ??? ?????? ? ???????? ???????. wb: ????????? ???? ??? ?????? ? ???????? ???????. wb+: ????????? ???? ??? ?????? ? ?????? ? ???????? ???????. a: ????????? ???? ??? ?????????? ? ????? ?????. +: ?????? ???? ?????? ???????????? ????? ?r,w???a? ???????? ??? ??????, ??? ? ??????.

???? ????? ????? ?? ??????, ?? ????????? ????? ??????????????r

??? ?????? ?????? ??????????? ????????? ??? ??????? ????????????? ? ??, ? ??????? ?????? ??????? ?? ????? ?????????????? ???? ????.

???????()

??? ? ??????????? ??? ? Python, ?????????? ?????? ?????, ????????? ? ???????, ????? ??????. ????????, ??????? ???? ?? Python ????? ????? ??????? ????:

myFile = open("new.txt", "w+")

? ??????????? ???? ??????? ?? ??????? ???? new.txt ??? ?????? ? ??????. ? ????? ??????, ????????? ???? ??? ?? ??????????, ?? ????????? ?????????????.

?????open()????????? ????????? ??????????, ???? ? ??????????? ??????? ?? ?????? ???????????? ?????? ??? ???:

  • filename - ???????????? ???? ??? ???????? ????? ?????, ??????? ?? ????? ??????? / ???????. ? ????? ??????? "new.txt"
  • mode - ?????????????? ???????? ??? ???????? ?????? ???????? ?????, ? ????? ??????? "w +"

?? ?????? ???????? ?????? ????????, ? ? ???? ?????? ?? ????? ?????? Python ???r.

?????? ?????????, ?? ????????????? ?????, ????????? ??????????? ???????????, ???????????, ????????? ????? ?????? ? ?. ?. ??? ????????? ?????????????? ?????????? ?? ???? ?????????? ???????????? ??? ??????open

???????()

????? ?? ?????????? ????, ??? ?????? ????? ?????????, ??? ?? ??? ???????. ??? ????? ??????? ? ???????close()????????? ??????? ??? ??????? ??? ?with????????? ????? with, ???????????????? Python, ??????? ????????????? ????????? ??? ??? ?????? ?? ??????? ?????????. ????? ???????? ????? ?? ?????? ?? ????? ???????? ??? ?????? ??? ?????? ? ????? ????, ???? ?? ?? ???????? ??? ????????? ?????.

?????????? ????? ?????? ????????? ???????? ? ?????????????? ????????? ????????, ???????? ?????? ????? ????????? ? ? ????????? ??????? ???????????? ????????????? ????? ?????? ?????. ?????? ?????? Python ????????? ????????????? ????????? ?????, ????? ??? ?????? ?? ????????????, ?? ??? ?? ??????? ?????????? ?? ???.

??? ??????? ????? ? ????? Python

? ????? ?? ?????????? ?????? ??????????????, ??? ?????????? Python ?? ???????????? ??????? Windows ? Linux. ???? ???????? ???????? ??????? ? ?????????????? ?????? ? «????????». ????? ??????????? ??? ???????? ??????? ????????? ???: ????????????? ????? ????????? ???? , ????????? ? ??????? ?????????? (????????????? ?????), ? ????? ?????????? ?????? ? ????? (???????? ?????). ????????? ???????? ?????? ??? ??????????? ??????? ????????? ? ???? Python ? Windows ? Linux. ???????? ???????????? ??? ??????????.

???? ???????????????? «??????» ???????? ???????????????? . ? ???? ????????? ????? ???????, ??? ????? ????? ?????????, ???????????? ??? ????? ? ??????????? ??????????, ?????????????? ?? ??????.

?????????? ?? ????????? ????? ?????, ??????? ?????????, ??? ????? ???????????????? ??????: ? ?????????????? . ? ???????????????? ????? ??? ??????????? ? ???????? ? ?????? ?????????? ?????????. ????? ??????????????? ?????????? ? ???????? ????????? ????? (???? ?????). ??????????? ????? ????????? ????? ??? ?????????????? ??????????? ??????? (??????????? ?????????? ??????? ???????? ?? ??????? ??????? ??????????). ???????? ????????????????? ?????????????? ??????? ???????????????? ???????? C++ ? C; ? ????????????????? . ? ???? ?????? ?????????? ????????? ?????????????? ??????????????? ? ??????????? ???????????????? ? ???? ????????? ????. ????? ?????????? ???? ?? ???? ????????? ? ????????????? «?????» ??? «??????» (Python).

?????? ???? Python: ????????????? ????? ? CMD

Python ???????? ??????????????? ? 2-? ???????: - ???????? ; - ????????????? .

????????????? Windows ????? ????????? ????????????? ????? ?????? ? ????? ? ??????? ????????? ?????? (CMD, command line interpreter ? ????????????? ????????? ??????). ?????? ????????? ??????, ??????? ??????? ????????? ???????:

python

?????? ?????? ?????? «???????» ? ????????????? ??????. ????? ????????? ?????? ????? ???? ??????????? ?????? (commands) ?? ????????????. ???, ??? ??? ????? ?????????:

????????? ?????? ? ??????? ????. ?????????? ?????? ? ????????????? ????????????? ???????????, ? ??????? ????? ?????? ??????????? ?????????: print("??????, OTUS!") . ? ????? ???? ?????? ?????? ???????????? ????? ???????? ? ?????? ?????.

??????? ??????? ? ??? ???????, ??????? ? ?????????. ?? ???? ?????, ??? ????????? ?????????? ??? ???????????.

?? ??????????? «???????» ??????? ?????? ?? ??????? ???????????? «????????????». ??? ??? ??????? ????? ???????????? ? ? ???????? ????????????, ???????? ??????????.

? ??? ??????????? ??????????????? ?????????, ??? ?????????? ????? ???? ?????? ?????? ? ???? ??????? ?????????????????? ??????? Matlab.

????? ??????? ????? ?? ?????????????? ??????, ?????? ??????? ??????? exit() .

?????? Python: ????????????? ????? ? IDLE

??? ????????? ????? ???????????????? Python ? ????????? ? ??? ???? IDLE . ??? ??????????????? ????? ??????????, ???????? ?? ????? ???? ??????????????, ??????? ??????? ????????????. ??????? ? ??????????? ????? ????????????. ????? ????? ????????????: ? ???????; ? ???????? ????????; ? ????????? ?????????? ? ??????.

????? ????????? IDLE ? Windows, ??????? ??????? ? ???? «????», ??? ????? ??? ??????? ????? ?????? ??????????:

????? ??????? ???????????? ?????? ????????? ?????:

? ??? ????? ???? ?????????? ???????? ? ?????.

???? ?? ???????? ???? ??? Linux, ?? ? ???? ???????????? ??????? IDLE-???????? ?? ??????? ???????????, ??????? ???????? ?? ??????????????. ??? Python 3.4 ??? ????? ????????? ???:

????????? ????? ????? ????????? ???????:

??? ????????? ?????????? Python ? ???????? ???????

??????, ? ???????????? ??? ???? Python-????? ? ??????????? .py. ?? ???? ????? ????????? ????? ????????? ??????. ??? ????? ?????????? ????????????? Python, ? ? ???????? ????????? ?????????? ??????????????? ????.

??????? ???????????????? ??? ?? ????????. ???????? ??????? ? ????????? ???? ??? ???????? ?????? ????:

????????? ???? ??? ?????? example.py . ????? ?? ????? ???????? ?? ????? C (????? ??????? ? ?????? ?????????? ?? ?????????? ????????????).

?????? ???????? ????????? ??????, ????????? ? ??????????????? ?????????? ? ?????? ????????? ????:

??????? ??????? ? ??????? ? ?????? ??????????, ????? ? ??????? ??? ??????? «??????» ? ???????? ??????, ??????? ? ???????? ?????????. ??? ??????.

?????? ??????:

  1. ????? ????????? «??????» ? ????????????? ??????, ???? ??????? ? ????????? ?????? (cmd) ??? ?????????????? ? python (?????? ??? python3) ???? ????????? ??????????????? ????? ?????????? IDLE.
  2. ????? ????????? ?????? ? ???????? ??????, ???? ?????? ? ????????? ?????? ??? ??????????????, ???? ??? ?????. ? ????? ?????? ??? python.example.py .

??? ??????????? ????????? ???????????? ????????????? ????????? ??? ????????????? ??????????????.

???????? ? https://devpractice.ru/python-lesson2-run/.

??? ????????? Python-??????? ?? ????????? ??????

????pyproject.tom??? ??????????? ??? ????? ??????????? ?? ????????? PEP 518 . ?? ??????????, ??? ?????? ??????? Python ?????? ????????? ??????????? ??????.

??? ??????????? ???????? ? ?????, ??????? ????????? ? ???????? ?????????? ??????? ? ????????????? ??????????TOML.

?? ???????? ??????????, ????? ??? ??? ???????, ??????, ????????, ??????, ???????? ? ?????? ??????????.

???? ?? ???????? ????????????? ?????pyproject.toml??? ??????????? ?????????? ??????????? ???????. ???????????? ????? ????????? ?????? ? ??????, ??????????? ??? ??????????? ??????? ???????.pyproject.toml???????????? ??????????????? ??????? ? ??????????? ??????????? ??? ??????????????? ??????? ??????????????.

????pyproject.toml????? ???????????? ?????????extras, ??????????? ????????????? ?????????? ?????????????? ???????????. ???????????? ????? ????????????? ?????? ?????? ??????????? ??? ??????? ???????. ??? ???????, ? ???????extras??????????? ?????????????? ??????????, ??????? ???????????? ? ?????? ????????????, ????????pytest.

?????? ??????????? ?????????? ? ???????????? ????pyproject.toml????? ???????????? ????????????? ???? ? ???????????? ?? ?????????? ?????????? ?????????????. ??? ????? ???? ??????????? ???????????, ???????? ?????????????? ? ????????, ????? ???black?mypy. ?????? ???????? ?????pyproject.toml????????? ????????????? ????????? ???????????????? ????? ? ????????? ????????????? ???? ? ???????????? ? ????????????.

??? ???????? ?????????? ? ?????? ?? Python

??????, ??? ????? ?????? ????????? (???? ?? ???????????? «hello, world» ??? ?? ???????????), ?????? ???????? ?????, ????? ????????? ?? ??????.

??? ???? ??????? ? ????? ??????, ???????? ??????? ?????????? ???????????? ? ????? ?????. ?????????? ??? ??? ??????? ?????? ?????? ?? ???? ????? ??????? ?????????.

????????, ??? ????? ?????? ??? ????? (a, b, c) ? ????? ????? ??????????? ?????????. ??? ??????? ????? ???:

from math import sqrt def square_eq_solver(a, b, c): result = discriminant = b * b - 4 * a * c if discriminant == 0: result.append(-b / (2 * a)) else: result.append((-b + sqrt(discriminant)) / (2 * a)) result.append((-b - sqrt(discriminant)) / (2 * a)) return result def show_result(data): if len(data) > 0: for index, value in enumerate(data): print(f'?????? ????? {index+1} ????? {value:.02f}') else: print('????????? ? ????????? ??????????? ?? ????? ??????') def main(): a, b, c = map(int, input('??????????, ??????? ??? ????? ????? ??????: ').split()) result = square_eq_solver(a, b, c) show_result(result) if __name__ == '__main__': main()

????? ?????????: ????? ??????, ????? ?? ??? ?? ???? ???????, ? ???????????? ? ??????? «?????-?????? ??? ???????? ? ?????? ????? ????????». ??????? ?????? ???????? ????????? ????????? ?? ????????? ???????????? (????/?????????/?????).

????????, ?? ??? ???????? ?????? ? ????. ?????? ?????? ??? ????? ???? ?????? ????????? ???????, ??? ?? ?????? ??? ?? ??????????. ? ? ????? ?????? ???????????? ?????? ??????? ?? ?? ???? ? ?????????????? ???. ??? ??? ????????

? ???? ???????? ?????????? ?????? ?????????, ?????????? ?????? ??????? ??????, ??????? ????? ???????? ?? ???? ?????????;

? ???? ??????? ??????, ????? ??????? ??????????, ????? ????? ?????? ???? ?????????;

? ????????? ????????? ? ???????? ?? ?? ???? ???????? ??????;

? ???????? ?? ??? ????? ? ?????????? ? ???, ??????? ?????? ???? ???????. ???? ??? ????????? ? ??????, ???? ? ?????????? ?????? ??????, ???? ???, ???????? ?? ??????.

????????, ??? ?????? ?????? ????? ????????? ????????? ?????:

  • 10x**2 = 0 ? ???????????? ?????? x=0
  • 2x**2 + 5x ? 3 = 0 ? ? ?????? ????????? ??? ????? (x1 = 0.5, x2=-3)
  • 10x**2+2 = 0 ? ? ????? ????????? ?????? ???

????? ?????????, ??? ??????? ?????????, ?????????:

???? ????? 1 > python.exe example.py ??????????, ??????? ??? ????? ????? ??????: 10 0 0 ?????? ????? 0 ????? 0.00 ???? ????? 2: > python.exe example.py ??????????, ??????? ??? ????? ????? ??????: 2 5 -3 ?????? ????? 1 ????? 0.50 ?????? ????? 2 ????? -3.00 ???? ????? 3: > python.exe example.py ??????????, ??????? ??? ????? ????? ??????: 10 0 2 Traceback (most recent call last): File "C:PyProjectstprogerexample.py", line 32, in main() File "C:PyProjectstprogerexample.py", line 27, in main result = square_eq_solver(a, b, c) File "C:PyProjectstprogerexample.py", line 11, in square_eq_solver result.append((-b + sqrt(discriminant)) / (2 * a)) ValueError: math domain error

???? ? ??????? ????? ????????? ??????. ??? ??? ??, ??????? ?? ????? ???????? ? ???????? ???? ????????? ? ?? ????????????? ?????? ? ??????? ??????????????. ? ?????, ????? ????????????????? ??? ??????? ???, ????? ???? ??????? ????????????? ?????????:

def square_eq_solver(a, b, c): result = discriminant = b * b - 4 * a * c if discriminant == 0: result.append(-b / (2 * a)) elif discriminant > 0: #

????????? ??? ????? ???????? ? ??? ??????????? ?????????.

?? ??????, ????? ???????? ????????? ?????????, ??????????? ????????? ????????? ????? ? ????? ????????? ??? ??? ???????? ??????? ????????. ???? ????? ????????? ????? ?????, ???????? ?? ??????? ????? ????? ????????. ? ????? ?? ????? ??????? ?????????????????? ????????????.

????????? ??????????????? ???????????? ??????????? ?? ?????? ??????? ????????????? ???????/???????? ?????? ? ?????????, ??????? ????? ?? ????????. ?? ????, ??? ?????????, ??????????? ?????? ?????????. ? ? ?????? ?????????? ????? Python ???? ????????? ???????, ??????????? ???????????????? ??????? ????????????.

?????????: ??????????? ????????, ?????????? ??? ???????, ????????????? ?????

???????????? ?????????? ? ????????!

? ????????? Squid ? Ubuntu 16.04: ??????????? ??? ??????????

??????? ?????

??? ?????? ?? ??????? ? ????????. ??? ???????? ??????? ??????? ? ??????????
????????? Squid ? Ubuntu 16.04: ??????????? ??? ??????????
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