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-rw-r--r--python.html.markdown34
1 files changed, 17 insertions, 17 deletions
diff --git a/python.html.markdown b/python.html.markdown
index f0b74d08..bad9a360 100644
--- a/python.html.markdown
+++ b/python.html.markdown
@@ -93,8 +93,8 @@ not False #=> True
# None is an object
None #=> None
-# Don't use the equality `==` symbol to compare objects to None
-# Use `is` instead
+# Don't use the equality "==" symbol to compare objects to None
+# Use "is" instead
"etc" is None #=> False
None is None #=> True
@@ -158,19 +158,19 @@ li[2:] #=> [4, 3]
# Omit the end
li[:3] #=> [1, 2, 4]
-# Remove arbitrary elements from a list with del
+# Remove arbitrary elements from a list with "del"
del li[2] # li is now [1, 2, 3]
# You can add lists
li + other_li #=> [1, 2, 3, 4, 5, 6] - Note: li and other_li is left alone
-# Concatenate lists with extend
+# Concatenate lists with "extend()"
li.extend(other_li) # Now li is [1, 2, 3, 4, 5, 6]
-# Check for existence in a list with in
+# Check for existence in a list with "in"
1 in li #=> True
-# Examine the length with len
+# Examine the length with "len()"
len(li) #=> 6
@@ -201,37 +201,37 @@ filled_dict = {"one": 1, "two": 2, "three": 3}
# Look up values with []
filled_dict["one"] #=> 1
-# Get all keys as a list
+# Get all keys as a list with "keys()"
filled_dict.keys() #=> ["three", "two", "one"]
# Note - Dictionary key ordering is not guaranteed.
# Your results might not match this exactly.
-# Get all values as a list
+# Get all values as a list with "values()"
filled_dict.values() #=> [3, 2, 1]
# Note - Same as above regarding key ordering.
-# Check for existence of keys in a dictionary with in
+# Check for existence of keys in a dictionary with "in"
"one" in filled_dict #=> True
1 in filled_dict #=> False
# Looking up a non-existing key is a KeyError
filled_dict["four"] # KeyError
-# Use get method to avoid the KeyError
+# Use "get()" method to avoid the KeyError
filled_dict.get("one") #=> 1
filled_dict.get("four") #=> None
# The get method supports a default argument when the value is missing
filled_dict.get("one", 4) #=> 1
filled_dict.get("four", 4) #=> 4
-# Setdefault method is a safe way to add new key-value pair into dictionary
+# "setdefault()" method is a safe way to add new key-value pair into dictionary
filled_dict.setdefault("five", 5) #filled_dict["five"] is set to 5
filled_dict.setdefault("five", 6) #filled_dict["five"] is still 5
# Sets store ... well sets
empty_set = set()
-# Initialize a set with a bunch of values
+# Initialize a "set()" with a bunch of values
some_set = set([1,2,2,3,4]) # some_set is now set([1, 2, 3, 4])
# Since Python 2.7, {} can be used to declare a set
@@ -284,7 +284,7 @@ for animal in ["dog", "cat", "mouse"]:
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
prints:
0
@@ -312,7 +312,7 @@ while x < 4:
# Works on Python 2.6 and up:
try:
- # Use raise to raise an error
+ # Use "raise" to raise an error
raise IndexError("This is an index error")
except IndexError as e:
pass # Pass is just a no-op. Usually you would do recovery here.
@@ -322,7 +322,7 @@ except IndexError as e:
## 4. Functions
####################################################
-# Use def to create new functions
+# Use "def" to create new functions
def add(x, y):
print "x is %s and y is %s" % (x, y)
return x + y # Return values with a return statement
@@ -359,7 +359,7 @@ all_the_args(1, 2, a=3, b=4) prints:
{"a": 3, "b": 4}
"""
-# When calling functions, you can do the opposite of varargs/kwargs!
+# When calling functions, you can do the opposite of args/kwargs!
# Use * to expand tuples and use ** to expand kwargs.
args = (1, 2, 3, 4)
kwargs = {"a": 3, "b": 4}
@@ -402,7 +402,7 @@ class Human(object):
# Assign the argument to the instance's name attribute
self.name = name
- # An instance method. All methods take self as the first argument
+ # An instance method. All methods take "self" as the first argument
def say(self, msg):
return "%s: %s" % (self.name, msg)