CODEWITHSUNDEEP
python-3.x
Murali
Murali

Reputation: 9

How can I get keys in a dictionary in Python when a value is given?

This is my Dictionary

finance={
'sno' : 'None',
'fin_ticker' : 'what',
'marketcap' : ['what','how much'],
'e_value' : ['what', 'how much'],
'ret_on_assets' : ['how much', 'what'],
'tot_cash' : 'what',
'op_cash' :'what',
'lev_free_cf' :'what',
'tot_debt' : 'what',
'curr_ratio' : ['what', 'how much'],
'gross_profit' :['what', 'how much'],
'prof_margin' :['what', 'how much'],
'last_trade' : ['what', 'how much'],
'trade_time' : ['what', 'when'],
'prev_close' : ['what', 'how much'],
}

I need to get keys for the given value..for instance when i gave a value as 'what' it displays all keys regarding to that value as follows

fin_ticker
marketcap
e_value
ret_on_assets
tot_cash
op_cash
lev_free_cf
tot_debt
curr_ratio
gross_profit etc...

Upvotes: 0

Views: 38

Answers (2)

Manoj Kumar
Manoj Kumar

Reputation: 757

You should iterate over keys with 

for key in finance.keys():
   if ( finance[key] == value )
       print "key: %s , value: %s" % (key, finance[key])
   elif isinstance(finance[key],list) and value in finance[key]:
       print "key: %s , value: %s" % (key, finance[key])

Upvotes: 0

Kasravnd
Kasravnd

Reputation: 107287

You can use a function to return a generator contain the expected keys :

def key_finder(d,val):
   for key in d :
      value=finance[key]
      if value==val:
         yield key
      elif isinstance(value,list) and val in value:
         yield key

Demo :

>>> list(key_finder(finance,'what'))
['op_cash', 'prev_close', 'curr_ratio', 'lev_free_cf', 'last_trade', 'marketcap', 'tot_cash', 'ret_on_assets', 'gross_profit', 'trade_time', 'prof_margin', 'fin_ticker', 'e_value', 'tot_debt']
>>> list(key_finder(finance,'how much'))
['prev_close', 'curr_ratio', 'last_trade', 'marketcap', 'ret_on_assets', 'gross_profit', 'prof_margin', 'e_value']

Upvotes: 1

Related Questions