Basic patterns for sorting dicts by keys or values

sort_dict_by_k_and_v.py

"""With dictionary d, of format key: word from text, value: word frequency 
Sort and display the key value pairs in the following ways:
1. DISPLAY TOP 20 WORDS & THEIR FREQ - SORTED: MOST FREQUENT FIRST
2. DISPLAY ALL WORDS THAT APPEAR MORE THAN 25 TIMES & THEIR COUNT - SORTED: MOST FREQ FIRST
3. DISPLAY ALL WORDS - SORTED ALPHABETICALLY
"""

d = make_wordcount_dict_from(filename)
top_twenty_count = 0

#######################################################
# SORT BY VALUE - found in x[1] of k, v tuple
g = sorted(d.items(), key=lambda x: x[1], reverse=True)
#######################################################

for k, v in g:

  # 1. DISPLAY TOP 20 WORDS & THEIR FREQ - SORTED: MOST FREQUENT FIRST
  if top_twenty_count < 20:
      print '\t{:8s} --> {}'.format(k, v)
  top_twenty_count += 1

  # 2. DISPLAY ALL WORDS THAT APPEAR MORE THAN 25 TIMES & THEIR COUNT - SORTED: MOST FREQ FIRST
  if v > 25:
      print '\t{:8s} --> {}'.format(k, v)


##
# 3. DISPLAY ALL WORDS - SORTED ALPHABETICALLY

#######################################################
# SORT BY KEY (word) - ALPHABETICALLY
g2 = sorted(d.iteritems())
#######################################################

for k, v in g2:
  print '\t{:8s} --> {}'.format(k, v)