Módulos

• Última modificación: Mayo 14, 2022

Introducción

%%writefile fibo.py

def fib(n):    # write Fibonacci series up to n
    a, b = 0, 1
    while a < n:
        print(a, end=' ')
        a, b = b, a+b
    print()

def fib2(n):   # return Fibonacci series up to n
    result = []
    a, b = 0, 1
    while a < n:
        result.append(a)
        a, b = b, a+b
    return result

Overwriting fibo.py

import fibo

fibo.fib(1000)

0 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987

fibo.fib2(100)

[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]

fib = fibo.fib
fib(500)

0 1 1 2 3 5 8 13 21 34 55 89 144 233 377

Importación

from fibo import fib, fib2

fib(500)

0 1 1 2 3 5 8 13 21 34 55 89 144 233 377

from fibo import *

fib(500)

0 1 1 2 3 5 8 13 21 34 55 89 144 233 377

import fibo as fib

fib.fib(500)

0 1 1 2 3 5 8 13 21 34 55 89 144 233 377

Ejecución de módulos como scripts

%%writefile fibo.py

def fib(n):    # write Fibonacci series up to n
    a, b = 0, 1
    while a < n:
        print(a, end=' ')
        a, b = b, a+b
    print()

def fib2(n):   # return Fibonacci series up to n
    result = []
    a, b = 0, 1
    while a < n:
        result.append(a)
        a, b = b, a+b
    return result

if __name__ == "__main__":
    import sys
    fib(int(sys.argv[1]))

Overwriting fibo.py

!python3 fibo.py 50

0 1 1 2 3 5 8 13 21 34

Módulos estándar

import sys

sys.ps1

'In : '

sys.ps2

'...: '

Función dir()

import fibo


dir(fibo)

['__builtins__',
 '__cached__',
 '__doc__',
 '__file__',
 '__loader__',
 '__name__',
 '__package__',
 '__spec__',
 'fib',
 'fib2']

Paquetes

sound/                          Top-level package
      __init__.py               Initialize the sound package
      formats/                  Subpackage for file format conversions
              __init__.py
              wavread.py
              wavwrite.py
              aiffread.py
              aiffwrite.py
              auread.py
              auwrite.py
              ...
      effects/                  Subpackage for sound effects
              __init__.py
              echo.py
              surround.py
              reverse.py
              ...
      filters/                  Subpackage for filters
              __init__.py
              equalizer.py
              vocoder.py
              karaoke.py
              ...

import sound.effects.echo

sound.effects.echo.echofilter(input, output, delay=0.7, atten=4)

from sound.effects import echo

echo.echofilter(input, output, delay=0.7, atten=4)

from sound.effects.echo import echofilter

echofilter(input, output, delay=0.7, atten=4)

from sound.effects import *

Referencias entre paquetues

from . import echo
from .. import formats
from ..filters import equalizer