How to Print a Dictionary's Key

How to print a dictionary's key?

A dictionary has, by definition, an arbitrary number of keys. There is no "the key". You have the keys() method, which gives you a python list of all the keys, and you have the iteritems() method, which returns key-value pairs, so

for key, value in mydic.iteritems() :
    print key, value

Python 3 version:

for key, value in mydic.items() :
    print (key, value)

So you have a handle on the keys, but they only really mean sense if coupled to a value. I hope I have understood your question.

How do I print the key-value pairs of a dictionary in python

Python 2 and Python 3

i is the key, so you would just need to use it:

for i in d:
    print i, d[i]

Python 3

d.items() returns the iterator; to get a list, you need to pass the iterator to list() yourself.

for k, v in d.items():
    print(k, v)

Python 2

You can get an iterator that contains both keys and values. d.items() returns a list of (key, value) tuples, while d.iteritems() returns an iterator that provides the same:

for k, v in d.iteritems():
    print k, v

How to print Specific key value from a dictionary?

It's too late but none of the answer mentioned about dict.get() method

>>> print(fruit.get('kiwi'))
2.0

In dict.get() method you can also pass default value if key not exist in the dictionary it will return default value. If default value is not specified then it will return None.

>>> print(fruit.get('cherry', 99))
99

fruit dictionary doesn't have key named cherry so dict.get() method returns default value 99

How to print out a dictionary nicely in Python?

I like the pprint module (Pretty Print) included in Python. It can be used to either print the object, or format a nice string version of it.

import pprint

# Prints the nicely formatted dictionary
pprint.pprint(dictionary)

# Sets 'pretty_dict_str' to the formatted string value
pretty_dict_str = pprint.pformat(dictionary)

But it sounds like you are printing out an inventory, which users will likely want shown as something more like the following:

def print_inventory(dct):
    print("Items held:")
    for item, amount in dct.items():  # dct.iteritems() in Python 2
        print("{} ({})".format(item, amount))

inventory = {
    "shovels": 3,
    "sticks": 2,
    "dogs": 1,
}

print_inventory(inventory)

which prints:

Items held:
shovels (3)
sticks (2)
dogs (1)

Printing dictionary keys based on multiple value conditions

Try this code

my_dict = {'Stock A': (100, 0.5), 'Stock B': (20, 0.9), 'Stock C': (40, 0.75), 'Stock D': (45, 0.3)}

new={}
for (stock,values) in my_dict.items():
     first=values[0]
     second=values[1]
     if (first>30 and second<0.6):
          new[name]=(first,second)

Hope it helps

Print dictionary with multiple values seperated

you can use 2 for loops to first iterate on keys and value (dictionary) and the 2nd one to iterate on the set (dictionary values).

mydict = {'bob': {"flying pigs"}, 'sam':{"open house", "monster dog"}, 'sally':{"glad smile"}}

for key, value in mydict.items():
    for item in value:
        print(key, item, sep=', ')

Output:

bob, flying pigs
sam, open house
sam, monster dog
sally, glad smile

Python, how to print dictionary key and its values in each line?

You could do it with a single for loop unpacking a value list each iteration.

d = {1: [2, 3], 2: [4, 5]}

for k in d:
    x, y = d[k]
    print("{} : {}\n{} : {}".format(k, x, k, y))

1 : 2
1 : 3
2 : 4
2 : 5

Because the value lists have just a couple numbers, it can also be done, like so:

for k, v in d.items():
    print("{} : {}\n{} : {}".format(k, v[0], k, v[1]))

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