updade from Atlas repo

03-dict-set/dialcodes.py

@@ -17,7 +17,7 @@ d1 = dict(DIAL_CODES)  # <1>
 print('d1:', d1.keys())
 d2 = dict(sorted(DIAL_CODES))  # <2>
 print('d2:', d2.keys())
-d3 = dict(sorted(DIAL_CODES, key=lambda x:x[1]))  # <3>
+d3 = dict(sorted(DIAL_CODES, key=lambda x: x[1]))  # <3>
 print('d3:', d3.keys())
 assert d1 == d2 and d2 == d3  # <4>
 # end::DIALCODES[]

03-dict-set/index.py

@@ -5,8 +5,8 @@
 # tag::INDEX[]
 """Build an index mapping word -> list of occurrences"""
 
-import sys
 import re
+import sys
 
 WORD_RE = re.compile(r'\w+')
 
@@ -15,11 +15,11 @@ with open(sys.argv[1], encoding='utf-8') as fp:
     for line_no, line in enumerate(fp, 1):
         for match in WORD_RE.finditer(line):
             word = match.group()
-            column_no = match.start()+1
+            column_no = match.start() + 1
             location = (line_no, column_no)
             index.setdefault(word, []).append(location)  # <1>
 
-# print in alphabetical order
+# display in alphabetical order
 for word in sorted(index, key=str.upper):
     print(word, index[word])
 # end::INDEX[]

03-dict-set/index0.py

@@ -5,8 +5,8 @@
 # tag::INDEX0[]
 """Build an index mapping word -> list of occurrences"""
 
-import sys
 import re
+import sys
 
 WORD_RE = re.compile(r'\w+')
 
@@ -22,7 +22,7 @@ with open(sys.argv[1], encoding='utf-8') as fp:
             occurrences.append(location)       # <2>
             index[word] = occurrences          # <3>
 
-# print in alphabetical order
+# display in alphabetical order
 for word in sorted(index, key=str.upper):  # <4>
     print(word, index[word])
 # end::INDEX0[]

03-dict-set/index_default.py

@@ -5,9 +5,9 @@
 # tag::INDEX_DEFAULT[]
 """Build an index mapping word -> list of occurrences"""
 
-import sys
-import re
 import collections
+import re
+import sys
 
 WORD_RE = re.compile(r'\w+')
 
@@ -16,11 +16,11 @@ with open(sys.argv[1], encoding='utf-8') as fp:
     for line_no, line in enumerate(fp, 1):
         for match in WORD_RE.finditer(line):
             word = match.group()
-            column_no = match.start()+1
+            column_no = match.start() + 1
             location = (line_no, column_no)
             index[word].append(location)  # <2>
 
-# print in alphabetical order
+# display in alphabetical order
 for word in sorted(index, key=str.upper):
     print(word, index[word])
 # end::INDEX_DEFAULT[]