Traverse Dictionary in Python

Traversing a dictionary is visiting each and every step in the dictionary, which is also called iterating the dictionary

In Python, dictionaries are a useful and commonly used data structure in which we have key-value pairs

Traversing a dictionary explains how to operate on a dictionary's key-value pairs while traversing through it.

There are many ways to traverse the dictionary in python

1. Using the items() method

2. Using the keys() method

3. Using the values() method

4. Using the Index to Iterate

1. Using the items() method

We can loop through the dictionary using Python's dict.items() method. You will learn the value and the key to each thing with each iteration.

Let ‘s see the examples using the items() method

Example 1

dictionary = { 
   'sravani': 'mamidgi', 
   'yamini': 'nallakunta', 
   'glory': 'parshapalli', 
   'chandana': 'ranabothu', 
   'shivapriya': 'thalla'
   }
for keys, values in dictionary.items(): 
print(keys ,values)

output

sravanimamidgi
yamininallakunta
glory parshapalli
chandanaranabothu
shiva priyathalla

Example 2

dictionary = { 
   'Name': 'sravani', 
   'year': '2003', 
   'age': '19', 
   'locatiion': 'Zaheerabad' 
}


for keys, values in dictionary.items(): 
print(keys ,values)

output

Name sravani
year 2003
age 19
locatiionZaheerabad

2. Using the keys() method

Use the keys() method that the dictionary provides to iterate through all of its keys. A list of the keys found in the dictionary is returned as an iterable.

Let ‘s see the examples using the items() method

Example 1

dictionary = { 
   'Name': 'sravani', 
   'year': '2003', 
   'age': '19', 
   'locatiion': 'Zaheerabad' 
}


for keys in dictionary.keys(): 
   print(keys)

output

Name
year
age
location

Example 2

dictionary = { 
   'sravani': 'mamidgi', 
   'yamini': 'nallakunta', 
   'glory': 'parshapalli', 
   'chandana': 'ranabothu', 
   'shivapriya': 'thalla'
   }
for keys in dictionary.keys(): 
   print(keys)

output

sravani
yamini
glory
chandana
shiva Priya

3. Using the values() method

Use the dictionary's values() method to loop through the values of the dictionary's elements.

The dictionary returns an iterable that contains all of the values for each entry. Then, by utilizing a for loop, you can cycle over the numbers as seen below.

Let ‘s see the examples using the items() method

Example 1

dictionary = { 
   'sravani': 'mamidgi', 
   'yamini': 'nallakunta', 
   'glory': 'parshapalli', 
   'chandana': 'ranabothu', 
   'shivapriya': 'thalla'
   }
for values in dictionary.values(): 
   print(values)

output

mamidgi
nallakunta
parshapalli
ranabothu
thalla

example 2

dictionary = { 
   'Name': 'sravani', 
   'year': '2003', 
   'age': '19', 
   'locatiion': 'Zaheerabad' 
}
for values in dictionary.values(): 
   print(values)

output

sravani
sravani
2003
19
Zaheerabad

4. Using the Index to Iterate

To iterate across the dictionary, use the item’s index. This is comparable to iterating the dictionary without using the methods keys(), values(), or items.

Let ‘s see the examples using the items() method

Example 1

dictionary = { 
   'Name': 'sravani', 
   'year': '2003', 
   'age': '19', 
   'locatiion': 'Zaheerabad' 
}
for index in dictionary:
print(index, dictionary[index])

output

Name sravani
year 2003
age 19
locatiionZaheerabad

Example 2

dictionary = { 
   'sravani': 'mamidgi', 
   'yamini': 'nallakunta', 
   'glory': 'parshapalli', 
   'chandana': 'ranabothu', 
   'shivapriya': 'thalla'
   }
for index in dictionary:
print(index, dictionary[index])

output

sravanimamidgi
yamininallakunta
glory parshapalli
chandanaranabothu
shiva priyathalla

Traversing over a dictionary in alphabetical order

Usually, dictionaries don't maintain any kind of structure. This suggests that the order of the elements in the iteration is not guaranteed. To iterate a dictionary using a specified order, use Python's sorted() method. The item will initially be sorted before being traversed through by a for a loop.

Example 1

Dictionary keys are sorted by the function sorted(dictionary.keys()), and for iterates through the keys that were returned.

Here is an example of iterating through an index-based dictionary

dictionary = { 
   'sravani': 'mamidgi', 
   'yamini': 'nallakunta', 
   'glory': 'parshapalli', 
   'chandana': 'ranabothu', 
   'shivapriya': 'thalla'
   }
for keys in sorted(dictionary.keys()):
print(keys, dictionary[keys])

output

chandanaranabothu
glory parshapalli
shiva priyathalla
sravanimamidgi
yamininallakunta

Example 2

dictionary = { 
   'Name': 'sravani', 
   'year': '2003', 
   'age': '19', 
   'locatiion': 'Zaheerabad' 
}


for keys in sorted(dictionary.keys()):
print(keys, dictionary[keys])

output

Name sravani
age 19
locatiionZaheerabad
year 2003

Combine the value and the key unlike using items()

In this illustration, a Python Loop Through a Dictionary is used, and with each iteration, the directory's key is obtained. Next, key data is printed, and a key is used as an index to display values from the directory.

Example 1

dictionary = { 
   'Name': 'sravani', 
   'year': '2003', 
   'age': '19', 
   'locatiion': 'Zaheerabad' 
}


for i in dictionary: 
   print(i,'->',dictionary[i])

output

Name ->sravani
year -> 2003
age -> 19
locatiion ->Zaheerabad

example 2

dictionary = { 
   'sravani': 'mamidgi', 
   'yamini': 'nallakunta', 
   'glory': 'parshapalli', 
   'chandana': 'ranabothu', 
   'shivapriya': 'thalla'
   }
for i in dictionary: 
   print(i,'->',dictionary[i])

output

sravani ->mamidgi
yamini ->nallakunta
glory ->parshapalli
chandana ->ranabothu
shiva priya ->thalla