Manipulating dictionary values in python-CodePudding

I have a dictionary where

the value for each key is a list.

> {"Market":['market', 'shop', 'shopping']}

I want the values to be separated by pipe i.e

> {'Market':'market|shop|shopping'}

I tried out few lines of code

for keys, values in pydict.items():

   values =  "|".join(values)
   mynew[keys] = 
   print(keys, values)

I tried out but not getting the final answer.

CodePudding user response：

Use a dictionary comprehension:

>>> x = {"Market":['market', 'shop', 'shopping'], "SomethingElse": ["foo", "bar"]}
>>> y = {k: "|".join(v) for (k, v) in x.items()}
{'Market': 'market|shop|shopping', 'SomethingElse': 'foo|bar'}`

CodePudding user response：

You can iterate over dict and use '|'.join() on values like below:

>>> dct = {"Market":['market', 'shop', 'shopping'], "Market2":['market', 'shop', 'shopping']}

>>> {k: '|'.join(item for item in v) for k,v in dct.items()}
{'Market': 'market|shop|shopping', 'Market2': 'market|shop|shopping'}

CodePudding user response：

You can use the dict comprehension like @AKX pointed out or you can also modify the dict values in place.


    >>> x = {"Market":['market', 'shop', 'shopping'], "SomethingElse": ["foo", "bar"]}
    >>> for k,v in x.items():
    ...     x[k] = "|".join(v)
    ...
    >>> x
    {'Market': 'market|shop|shopping', 'SomethingElse': 'foo|bar'}
    >>>