#!/usr/bin/env python
# coding: utf-8

# # Advanced Dictionary Topics

# built-in ** zip() ** function
# - all builtin functions are listed here with examples: https://docs.python.org/3/library/functions.html

# In[ ]:


help(zip)


# In[ ]:


zdata = zip([1, 2, 3], ('a', 'b', 'c'))


# In[ ]:


print(zdata)


# In[ ]:


alist = list(zdata)
print(alist)


# In[ ]:


adict = dict(alist)
print(adict)


# ## exercise
# Create a dict that maps lowercase alphabets to integers, e.g., a maps to 1, b maps to 2, ..., z maps to 26 and print it

# In[ ]:


import string
lettersToDigits = dict(zip(string.ascii_lowercase, range(1, 27)))


# In[ ]:


print(lettersToDigits)


# ## Ordered dictionary
# - defined in collections module

# In[ ]:


from collections import OrderedDict
bdict = OrderedDict()


# In[ ]:


bdict['z'] = 26
bdict['a'] = 1


# In[ ]:


print(bdict)


# ## exercise
# Create a dict that maps lowercase alphabets to their corresponding ASCII values , e.g., a maps to 97, b maps to 98, ..., z maps to 122 and print the dictionary in alphabetical order

# In[ ]:


import string
lettersToDigits = dict(zip(string.ascii_lowercase, range(ord('a'), ord('z')+1)))


# In[ ]:


print(lettersToDigits)


# In[ ]: