# Python | Get first N key:value pairs in given dictionary

• Last Updated : 02 Aug, 2019

Given a dictionary, the task is to get N key:value pairs from given dictionary. This type of problem can be useful while some cases, like fetching first N values in web development.

Note that the given dictionary is unordered, the first N pairs will not be same here all the time. In case, you need to maintain order in your problem, you can use ordered dictionary.

Code #1: Using itertools.islice() method

 `# Python program to get N key:value pairs in given dictionary ` `# using itertools.islice() method ` ` `  `import` `itertools  ` `   `  `# Initialize dictionary ` `test_dict ``=` `{``'Geeks'` `: ``1``, ``'For'``:``2``,  ``'is'` `: ``3``, ``'best'` `: ``4``, ``'for'` `: ``5``, ``'CS'` `: ``6``}  ` `   `  `# printing original dictionary  ` `print``(``"The original dictionary : "` `+`  `str``(test_dict))  ` `   `  `# Initialize limit  ` `N ``=` `3` `   `  `# Using islice() + items()  ` `# Get first N items in dictionary  ` `out ``=` `dict``(itertools.islice(test_dict.items(), N))  ` `       `  `# printing result   ` `print``(``"Dictionary limited by K is : "` `+` `str``(out))  `

Output:

The original dictionary : {‘for’: 5, ‘best’: 4, ‘CS’: 6, ‘is’: 3, ‘Geeks’: 1, ‘For’: 2}
Dictionary limited by K is : {‘for’: 5, ‘best’: 4, ‘CS’: 6}

Code #2: Using slicing on dictionary item list

 `# Python program to get N key:value pairs in given dictionary ` `# using list slicing ` `   `  `# Initialize dictionary ` `test_dict ``=` `{``'Geeks'` `: ``1``, ``'For'``:``2``,  ``'is'` `: ``3``, ``'best'` `: ``4``, ``'for'` `: ``5``, ``'CS'` `: ``6``}  ` `   `  `# printing original dictionary  ` `print``(``"The original dictionary : "` `+`  `str``(test_dict))  ` `   `  `# Initialize limit  ` `N ``=` `3` `   `  `# Using items() + list slicing  ` `# Get first K items in dictionary  ` `out ``=` `dict``(``list``(test_dict.items())[``0``: N])  ` `       `  `# printing result   ` `print``(``"Dictionary limited by K is : "` `+` `str``(out))  `

Output:

The original dictionary : {‘best’: 3, ‘gfg’: 1, ‘is’: 2, ‘CS’: 5, ‘for’: 4}
Dictionary limited by K is : {‘best’: 3, ‘gfg’: 1, ‘is’: 2}

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