Rrc: /* compile( ) */

2015-12-16T14:47:10Z

‎compile( )

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== Funciones Integradas ==
<table border="1" cellpadding="5" cellspacing="5">
<tr><th colspan="5" style="text-align:center;">Funciones Integradas</th>
</tr>
<tr>
<td>abs()</td><td>dir()</td><td>hex()</td><td>next()</td><td>slice()</td>
</tr>
<tr>
<td>all()</td><td>divmod()</td><td>id()</td><td>object()</td><td>sorted()</td>
</tr>
<tr>
<td>any()</td><td>enumerate()</td><td>input()</td><td>oct()</td><td>staticmethod()</td>
</tr>
<tr>
<td>ascii()</td><td>eval()</td><td>int()</td><td>open()</td><td>str()</td>
</tr>
<tr><td>bin()</td><td>exec()</td><td>isinstance()</td><td>ord()</td><td>sum()</td>
</tr>
<tr><td>bool()</td><td>filter()</td><td>issubclass()</td><td>pow()</td>
<td>super()</td>
</tr>
<tr><td>bytearray()</td><td>float()</td><td>iter()</td><td>print()</td>
<td>tuple()</td>
</tr>
<tr><td>bytes()</td><td>format()</td><td>len()</td><td>property()</td><td>type()</td>
</tr>
<tr><td>chr()</td><td>frozenset()</td><td>list()</td><td>range()</td><td>vars()</td>
</tr>
<tr><td>classmethod()</td><td>getattr()</td><td>locals()</td><td>repr()</td><td>zip()</td>
</tr>
<tr><td>compile()</td><td>globals()</td><td>map()</td><td>reversed()</td>
<td>__import__()</td>
</tr>
<tr><td>complex()</td><td>hasattr()</td><td>max()</td><td>round()</td>
<td> </td>
</tr>
<tr><td>delattr()</td><td>hash()</td><td>memoryview()</td><td>set()</td>
<td> </td>
</tr>
<tr><td>dict()</td><td>help()</td><td>min()</td><td>setattr()</td><td> </td>
</tr>
</table>

<hr />

=== abs( x ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

x = 44
y = -44.55
z = 0

print( "abs(", x, ") =", abs( x ) )
print( "abs( " + str( x ) + " ) = " + str( abs( x ) ) )

print( "abs(", y, ") =", abs( y ) )

print( "abs(", z, ") =", abs( z ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Pridd PythonClase]$ ./Abs.py
abs( 44 ) = 44
abs( 44 ) = 44
abs( -44.55 ) = 44.55
abs( 0 ) = 0

=== all( set ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "all([0,1,0]) nos da:", all([0,1,0] ) )
print( "all([0,0,0]) nos da:", all([0,0,0] ) )
print( "all([1, \"Hola\", -10.6]) nos da:", all([1, "Hola", -10.6] ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Pridd PythonClase]$ ./All.py
all([0,1,0]) nos da: False
all([0,0,0]) nos da: False
all([1, "Hola", -10.6]) nos da: True

=== any( set ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "any([0,1,0]) nos da:", any([0,1,0] ) )
print( "any([0,0,0]) nos da:", any([0,0,0] ) )
print( "any([1, \"Hola\", -10.6]) nos da:", any([1, "Hola", -10.6] ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Pridd PythonClase]$ ./Any.py
any([0,1,0]) nos da: True
any([0,0,0]) nos da: False
any([1, "Hola", -10.6]) nos da: True

=== bin( x ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "bin( 245 ) nos da:", bin( 245 ) )
print( "bin( -456 ) nos da:", bin( -456 ) )
print( "bin( 34.5 ) nos da:", bin( 34.5 ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Pridd PythonClase]$ ./Bin.py
bin( 245 ) nos da: 0b11110101
bin( -456 ) nos da: -0b111001000
Traceback (most recent call last):
File "./Bin.py", line 6, in <module>
print( "bin( 34.5 ) nos da:", bin( 34.5 ) )
TypeError: 'float' object cannot be interpreted as an integer

=== bool( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "bool( 99 ) es:", bool( 99 ) )
print( "bool( -100 ) es:", bool( -100 ) )
print( "bool( 0 ) es:", bool( 0 ) )
print( "bool( \'\' ) es:", bool( '' ) )
print( "bool( \"\" ) es:", bool( "" ) )
print( "bool( \" \" ) es:", bool( " " ) )
print( "bool( [ \'\' ] ) es:", bool( [ '' ] ) )
print( "bool( ( \'\' ) ) es:", bool( ( '' ) ) )
print( "bool( [ 0 ] ) es:", bool( [ 0 ] ) )
print( "bool( [ ] ) es:", bool( [ ] ) )
print( "bool( ( ) ) es:", bool( ( ) ) )
print( "bool( \'Hola\' ) es:", bool( 'Hola' ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Bool.py
bool( 99 ) es: True
bool( -100 ) es: True
bool( 0 ) es: False
bool( '' ) es: False
bool( "" ) es: False
bool( " " ) es: True
bool( [ '' ] ) es: True
bool( ( '' ) ) es: False
bool( [ 0 ] ) es: True
bool( [ ] ) es: False
bool( ( ) ) es: False
bool( 'Hola' ) es: True

=== bytearray( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "\nEjemplo 1:" )
s = bytearray(b"Hello World")
s[:5] = b"Cruel"

print( "s es:", s, "\n" )

print( "Ejemplo 2:" )

s = bytearray(b"Hello World")
for c in s: print(c)

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Bytearray.py

Ejemplo 1:
s es: bytearray(b'Cruel World')

Ejemplo 2:
72
101
108
108
111
32
87
111
114
108
100

=== bytes( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( bytes( "Buenos días, cómo estás", "utf-8" ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Bytes.py
b'Buenos d\xc3\xadas, c\xc3\xb3mo est\xc3\xa1s'

=== chr( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "chr( 97 ) es:", chr( 97 ), "y chr( 97 + 3 ) es:", chr( 97 + 3 ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Chr.py
chr( 97 ) es: a y chr( 97 + 3 ) es: d

=== classmethod( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

import math

print( "classmethod( classmethod ) es:", classmethod( classmethod ) )
print( "classmethod( print ) es: ", classmethod( print ) )
print( "classmethod( format ) es: ", classmethod( format ) )
print( "classmethod( math.cos ) es: ", classmethod( math.cos ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Classmethod.py
classmethod( classmethod ) es: <classmethod object at 0x7f31e5bf1ad0>
classmethod( print ) es: <classmethod object at 0x7f31e5bf1ad0>
classmethod( format ) es: <classmethod object at 0x7f31e5bf1ad0>
classmethod( math.cos ) es: <classmethod object at 0x7f31e5bf1ad0>

=== compile( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

Este función es flujo, mejor usar py_compile

Python 3.4.3 (default, Jul 1 2015, 18:38:11)
[GCC 4.9.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import py_compile
>>> py_compile.compile('CompileMe.py')
'__pycache__/CompileMe.cpython-34.pyc'
[rrc@Pridd PythonClase]$ ls -al __pycache__/
total 12
drwx------ 2 rrc rrc 4096 Dec 16 08:13 ./
drwxr-x--- 3 rrc rrc 4096 Dec 16 08:14 ../
-rw------- 1 rrc rrc 333 Dec 16 08:13 CompileMe.cpython-34.pyc
[rrc@Pridd PythonClase]$ file __pycache__/CompileMe.cpython-34.pyc
__pycache__/CompileMe.cpython-34.pyc: data

[rrc@Pridd PythonClase]$ python3 __pycache__/CompileMe.cpython-34.pyc
10 es igual a 2 * 5
11 es un número primo
12 es igual a 2 * 6
13 es un número primo
14 es igual a 2 * 7
15 es igual a 3 * 5
16 es igual a 2 * 8
17 es un número primo
18 es igual a 2 * 9
19 es un número primo
Listo

Ve también
python -m compileall -h
para compilar todos los archivos en una carpeta desde la línea de comando

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Compile.py
math.fabs( -45.17 ) : 45.17
math.fabs( 100.12 ) : 100.12
math.fabs( math.pi ) : 3.141592653589793

[rrc@Llawyr PythonClase]$ ls -al __pycache__
total 12
drwxr-x--- 2 rrc rrc 4096 Oct 6 18:54 ./
drwxr-x--- 3 rrc rrc 4096 Oct 7 11:21 ../
-rw-r----- 1 rrc rrc 340 Oct 6 18:05 Fabs.cpython-33.pyc

[rrc@Llawyr PythonClase]$ file __pycache__/Fabs.cpython-33.pyc
__pycache__/Fabs.cpython-33.pyc: python 3.3 byte-compiled

=== complex( x, y ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

x=complex(1,2)
print( "x es:", x )
y=complex(3,4)
print( "y es:", y )
z=x+y
print( "z es:", z )
z=x*y
print( "z es:", z )
z=x/y
print( "z es:", z )
print( "x.imag es:", x.imag )
print( "x.real es:", x.real )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Complex.py
x es: (1+2j)
y es: (3+4j)
z es: (4+6j)
z es: (-5+10j)
z es: (0.44+0.08j)
x.imag es: 2.0
x.real es: 1.0

=== delattr( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

class MyClass(object):
def __init__(self):
self.x = 10

obj = MyClass()
print( "\nAntes de borrar" )
print( "obj.x es:", obj.x )
delattr(obj, "x")
print( "\nDespués de borrar" )
print( "obj.x es:", obj.x )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Delattr.py

Antes de borrar
obj.x es: 10

Después de borrar
Traceback (most recent call last):
File "./Delattr.py", line 13, in <module>
print( "obj.x es:", obj.x )
AttributeError: 'MyClass' object has no attribute 'x'

=== dict( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "dict([('x', 10), ('y', 20)]) nos da:", dict([('x', 10), ('y', 20)]) )
print( "dict([\"a9\", \"b6\"]) nos da:", dict(["a9", "b6"]) )
mylist = [('x', 10), ('y', 20)]
print( "dict(mylist) nos da:", dict(mylist) )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Dict.py
dict([('x', 10), ('y', 20)]) nos da: {'y': 20, 'x': 10}
dict(["a9", "b6"]) nos da: {'a': '9', 'b': '6'}
dict(mylist) nos da: {'y': 20, 'x': 10}

=== dir( ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

MiCadena = "Hola"

print( "\ndir( ) te da una lista de todos los variables en el scope local actual:", dir( ) )

print( "\ndir( MiCadena ) te dice cual son los heramientas que podemos usar con MiCadena:", dir( MiCadena ) )

print( "\ndir( object ) te dice cual son los heramientas que podemos usar con un objeto:", dir( object ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Llawyr PythonClase]$ ./Dir.py

dir( ) te da una lista de todos los variables en el scope local actual: ['MiCadena', '__builtins__',
'__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__']

dir( MiCadena ) te dice cual son los heramientas que podemos usar con MiCadena: ['__add__', '__class__', '__contains__',
'__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__',
'__getnewargs__', '__gt__', '__hash__', '__init__', '__iter__', '__le__', '__len__', '__lt__', '__mod__',
'__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmod__', '__rmul__',
'__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'capitalize', 'casefold', 'center', 'count',
'encode', 'endswith', 'expandtabs', 'find', 'format', 'format_map', 'index', 'isalnum', 'isalpha',
'isdecimal', 'isdigit', 'isidentifier', 'islower', 'isnumeric', 'isprintable', 'isspace', 'istitle',
'isupper', 'join', 'ljust', 'lower', 'lstrip', 'maketrans', 'partition', 'replace', 'rfind', 'rindex',
'rjust', 'rpartition', 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase',
'title', 'translate', 'upper', 'zfill']

dir( object ) te dice cual son los heramientas que podemos usar con un objeto: ['__class__', '__delattr__',
'__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__',
'__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__',
'__str__', '__subclasshook__']

=== hex( x ) ===

<syntaxhighlight lang="python" line="GESHI_FANCY_LINE_NUMBERS">

#!/usr/bin/python3
#-*-coding: utf-8 -*-

print( "hex( 99 ) : ", hex( 99 ) )
print( "hex( -100 ) : ", hex( -100 ) )
print( "hex( 5.1 ) : ", hex( 5.1 ) )

</syntaxhighlight>

==== Resultado ====

[rrc@Pridd PythonClase]$ ./Hex.py
hex( 99 ) : 0x63
hex( -100 ) : -0x64
Traceback (most recent call last):
File "./Hex.py", line 6, in <module>
print( "hex( 5.1 ) : ", hex( 5.1 ) )
TypeError: 'float' object cannot be interpreted as an integer

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[[Category:PythonCabal]]
[[Category:CursoPython]]

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Rrc: /* compile( ) */