Creating new variables in loop, with names from list, in Python

Question

How to create new variables with names from list? This:

name = [\'mike\', \'john\', \'steve\']   
age = [20, 32, 19]  
index = 0

for e in name:
    name[ind         


        

Answer 1

A dictionary is the way to go!

import pandas as pd
import datetime
import pandas_datareader as dr

# Get data for this year, so far
start = datetime.datetime(2019,1,1)
end = datetime.datetime(2019,6,1)

companies = ['AA', 'AAPL', 'BA', 'IBM']
df_dict = {}
for name in companies:
    df_dict[name] = pd.DataFrame()
    df_dict[name] = dr.data.get_data_yahoo(name, start, end)

print()
print(' Apple dataframe ')
print(df_dict['AAPL'].head())

Answer 2

I think dictionaries are more suitable for this purpose:

>>> name = ['mike', 'john', 'steve']   

>>> age = [20, 32, 19] 

>>> dic=dict(zip(name, age))

>>> dic['mike']
20
>>> dic['john']
32

But if you still want to create variables on the fly you can use globals()[]:

>>> for x,y in zip(name, age):
    globals()[x] = y


>>> mike
20
>>> steve
19
>>> john
32

Answer 3

name = ['mike', 'john', 'steve']   
age = [20, 32, 19] 
for i in range(len(name)):
    exec("%s = %d" %(name[i], age[i]))
print(mike)
print(john)
print(steve)

Answer 4

You can use globals():

globals()[e] = age[index]

Generally, though, you don't want to do that; a dictionary is much more convenient.

people = {
    'mike': 20,
    'john': 32,
    'steve': 19
}