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Iterate over a dictionary in Python
In this article, we will learn about iteration/traversal of a dictionary in Python 3.x. Or earlier.
A dictionary is an unordered sequence of key-value pairs. Indices can be of any immutable type and are called keys. This is also specified within curly braces.
Method 1 − Using iterables directly
Example
dict_inp = {'t':'u','t':'o','r':'i','a':'l','s':'p','o':'i','n':'t'}
# Iterate over the string
for value in dict_inp:
print(value, end='')Output
trason
Method 2 − Using iterables for values of the dictionary
Example
dict_inp = {'t':'u','t':'o','r':'i','a':'l','s':'p','o':'i','n':'t'}
# Iterate over the string
for value in dict_inp.values():
print(value, end='')Output
oilpit
Method 3 − Using keys as an index
Example
dict_inp = {'t':'u','t':'o','r':'i','a':'l','s':'p','o':'i','n':'t'}
# Iterate over the string
for value in dict_inp:
print(dict_inp[value], end='')Output
oilpit
Method 4 − Using keys and values of the dictionary
Example
dict_inp = {'t':'u','t':'o','r':'i','a':'l','s':'p','o':'i','n':'t'}
# Iterate over the string
for value,char in dict_inp.items():
print(value,":",char, end=" ")Output
t : o r : i a : l s : p o : i n : t
Conclusion
In this article, we learned about iteration/traversal over a dictionary in Python.
Updated on 01-Jul-2020 07:15:00
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