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[python/en] Moved to default python2 print statements.

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Sriram Sundarraj 2015-04-24 22:57:33 +05:30
parent 4ee011100b
commit 6b6342a7dc
1 changed files with 21 additions and 19 deletions
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40
python.html.markdown
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@ -145,8 +145,10 @@ bool("") # => False
print "I'm Python. Nice to meet you!" print "I'm Python. Nice to meet you!"
# Python also has a print function, available in versions 2.7 and 3... # Python also has a print function, available in versions 2.7 and 3...
# but for 2.7 you need to add the import (uncommented): # but for 2.7 you need to add the import (uncommented):
# from __future__ import print_function from __future__ import print_function
print("I'm also Python! ") print("I'm also Python! ")
# This is useful to maintain compatibility,
# but for this doc, we'll use the python 2 print statement
# No need to declare variables before assigning to them. # No need to declare variables before assigning to them.
some_var = 5 # Convention is to use lower_case_with_underscores some_var = 5 # Convention is to use lower_case_with_underscores
@ -316,11 +318,11 @@ some_var = 5
# Here is an if statement. Indentation is significant in python! # Here is an if statement. Indentation is significant in python!
# prints "some_var is smaller than 10" # prints "some_var is smaller than 10"
if some_var > 10: if some_var > 10:
print("some_var is totally bigger than 10.") print "some_var is totally bigger than 10."
elif some_var < 10: # This elif clause is optional. elif some_var < 10: # This elif clause is optional.
print("some_var is smaller than 10.") print "some_var is smaller than 10."
else: # This is optional too. else: # This is optional too.
print("some_var is indeed 10.") print "some_var is indeed 10."
""" """
@ -332,7 +334,7 @@ prints:
""" """
for animal in ["dog", "cat", "mouse"]: for animal in ["dog", "cat", "mouse"]:
# You can use % to interpolate formatted strings # You can use % to interpolate formatted strings
print("%s is a mammal" % animal) print "%s is a mammal" % animal
""" """
"range(number)" returns a list of numbers "range(number)" returns a list of numbers
@ -344,7 +346,7 @@ prints:
3 3
""" """
for i in range(4): for i in range(4):
print(i) print i
""" """
"range(lower, upper)" returns a list of numbers "range(lower, upper)" returns a list of numbers
@ -356,7 +358,7 @@ prints:
7 7
""" """
for i in range(4, 8): for i in range(4, 8):
print(i) print i
""" """
While loops go until a condition is no longer met. While loops go until a condition is no longer met.
@ -368,7 +370,7 @@ prints:
""" """
x = 0 x = 0
while x < 4: while x < 4:
print(x) print x
x += 1 # Shorthand for x = x + 1 x += 1 # Shorthand for x = x + 1
# Handle exceptions with a try/except block # Handle exceptions with a try/except block
@ -391,7 +393,7 @@ else: # Optional clause to the try/except block. Must follow all except blocks
# Use "def" to create new functions # Use "def" to create new functions
def add(x, y): def add(x, y):
print("x is %s and y is %s" % (x, y)) print "x is %s and y is %s" % (x, y)
return x + y # Return values with a return statement return x + y # Return values with a return statement
# Calling functions with parameters # Calling functions with parameters
@ -420,8 +422,8 @@ keyword_args(big="foot", loch="ness") # => {"big": "foot", "loch": "ness"}
# You can do both at once, if you like # You can do both at once, if you like
def all_the_args(*args, **kwargs): def all_the_args(*args, **kwargs):
print(args) print args
print(kwargs) print kwargs
""" """
all_the_args(1, 2, a=3, b=4) prints: all_the_args(1, 2, a=3, b=4) prints:
(1, 2) (1, 2)
@ -517,10 +519,10 @@ class Human(object):
# Instantiate a class # Instantiate a class
i = Human(name="Ian") i = Human(name="Ian")
print(i.say("hi")) # prints out "Ian: hi" print i.say("hi") # prints out "Ian: hi"
j = Human("Joel") j = Human("Joel")
print(j.say("hello")) # prints out "Joel: hello" print j.say("hello") # prints out "Joel: hello"
# Call our class method # Call our class method
i.get_species() # => "H. sapiens" i.get_species() # => "H. sapiens"
@ -540,12 +542,12 @@ Human.grunt() # => "*grunt*"
# You can import modules # You can import modules
import math import math
print(math.sqrt(16)) # => 4 print math.sqrt(16) # => 4
# You can get specific functions from a module # You can get specific functions from a module
from math import ceil, floor from math import ceil, floor
print(ceil(3.7)) # => 4.0 print ceil(3.7) # => 4.0
print(floor(3.7)) # => 3.0 print floor(3.7) # => 3.0
# You can import all functions from a module. # You can import all functions from a module.
# Warning: this is not recommended # Warning: this is not recommended
@ -591,7 +593,7 @@ xrange_ = xrange(1, 900000000)
# will double all numbers until a result >=30 found # will double all numbers until a result >=30 found
for i in double_numbers(xrange_): for i in double_numbers(xrange_):
print(i) print i
if i >= 30: if i >= 30:
break break
@ -620,8 +622,8 @@ def say(say_please=False):
return msg, say_please return msg, say_please
print(say()) # Can you buy me a beer? print say() # Can you buy me a beer?
print(say(say_please=True)) # Can you buy me a beer? Please! I am poor :( print say(say_please=True) # Can you buy me a beer? Please! I am poor :(
``` ```
## Ready For More? ## Ready For More?