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[python] Clarify setdefault, as per #234

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This commit is contained in:
Adam Brenecki 2013-09-20 19:32:58 +09:30
parent 750b2a2f21
commit 1405dc6387
1 changed files with 4 additions and 4 deletions
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python.html.markdown
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@ -224,7 +224,7 @@ filled_dict.get("four") #=> None
filled_dict.get("one", 4) #=> 1 filled_dict.get("one", 4) #=> 1
filled_dict.get("four", 4) #=> 4 filled_dict.get("four", 4) #=> 4
# "setdefault()" method is a safe way to add new key-value pair into dictionary # "setdefault()" inserts into a dictionary only if the given key isn't present
filled_dict.setdefault("five", 5) #filled_dict["five"] is set to 5 filled_dict.setdefault("five", 5) #filled_dict["five"] is set to 5
filled_dict.setdefault("five", 6) #filled_dict["five"] is still 5 filled_dict.setdefault("five", 6) #filled_dict["five"] is still 5
@ -282,9 +282,9 @@ 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
from zero to the given number from zero to the given number
prints: prints:
0 0
@ -459,7 +459,7 @@ import math as m
math.sqrt(16) == m.sqrt(16) #=> True math.sqrt(16) == m.sqrt(16) #=> True
# Python modules are just ordinary python files. You # Python modules are just ordinary python files. You
# can write your own, and import them. The name of the # can write your own, and import them. The name of the
# module is the same as the name of the file. # module is the same as the name of the file.
# You can find out which functions and attributes # You can find out which functions and attributes