Itertools Code Snippets

Python/Itertools/iter-demo.py

+
+import itertools
+
+
+def get_state(person):
+    return person['state']
+
+
+people = [
+    {
+        'name': 'John Doe',
+        'city': 'Gotham',
+        'state': 'NY'
+    },
+    {
+        'name': 'Jane Doe',
+        'city': 'Kings Landing',
+        'state': 'NY'
+    },
+    {
+        'name': 'Corey Schafer',
+        'city': 'Boulder',
+        'state': 'CO'
+    },
+    {
+        'name': 'Al Einstein',
+        'city': 'Denver',
+        'state': 'CO'
+    },
+    {
+        'name': 'John Henry',
+        'city': 'Hinton',
+        'state': 'WV'
+    },
+    {
+        'name': 'Randy Moss',
+        'city': 'Rand',
+        'state': 'WV'
+    },
+    {
+        'name': 'Nicole K',
+        'city': 'Asheville',
+        'state': 'NC'
+    },
+    {
+        'name': 'Jim Doe',
+        'city': 'Charlotte',
+        'state': 'NC'
+    },
+    {
+        'name': 'Jane Taylor',
+        'city': 'Faketown',
+        'state': 'NC'
+    }
+]
+
+person_group = itertools.groupby(people, get_state)
+
+copy1, copy2 = itertools.tee(person_group)
+
+for key, group in person_group:
+    print(key, len(list(group)))
+    # for person in group:
+    #     print(person)
+    # print()

Python/Itertools/snippets.txt

+
+letters = ['a', 'b', 'c', 'd']
+numbers = [0, 1, 2, 3]
+names = ['Corey', 'Nicole']
+
+
+
+people = [
+    {
+        'name': 'John Doe',
+        'city': 'Gotham',
+        'state': 'NY'
+    },
+    {
+        'name': 'Jane Doe',
+        'city': 'Kings Landing',
+        'state': 'NY'
+    },
+    {
+        'name': 'Corey Schafer',
+        'city': 'Boulder',
+        'state': 'CO'
+    },
+    {
+        'name': 'Al Einstein',
+        'city': 'Denver',
+        'state': 'CO'
+    },
+    {
+        'name': 'John Henry',
+        'city': 'Hinton',
+        'state': 'WV'
+    },
+    {
+        'name': 'Randy Moss',
+        'city': 'Rand',
+        'state': 'WV'
+    },
+    {
+        'name': 'Nicole K',
+        'city': 'Asheville',
+        'state': 'NC'
+    },
+    {
+        'name': 'Jim Doe',
+        'city': 'Charlotte',
+        'state': 'NC'
+    },
+    {
+        'name': 'Jane Taylor',
+        'city': 'Faketown',
+        'state': 'NC'
+    }
+]

Python/Itertools/test.log

+Date: 2018-11-08
+Author: Corey
+Description: This is a sample log file
+
+Okay, so this is a sample entry.
+I'm going to write a few more lines here.
+For the sake of this video, let's pretend this log file is thousands and thousands of lines... okay?
+