Python for Everybody (Audio/PY4E)

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**Python for Everybody (Audio/PY4E)**

These are the audio lectures to supplement the textbook ‘Python for Everybody: Exploring Information’ and its associated web site www.py4e.com. There is also a video podcast of this material.

Latest Episodes:

8.3 Strings and Lists Sep 30, 2016

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We learn how to parse strings pull sub-strings out of a string using the split() function.

9.1 Python Dictionaries Sep 30, 2016

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We compare and contrast how Python lists and dictionaries are structured internally. How we use position to index lists and use keys to index dictionaries.

9.2 Building Histograms Sep 30, 2016

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We look at how we can use dictionaries to count the frequencies of many things at the same time. We learn how the key and value are related in a dictionary and example the get method to retrieve values from a Python dictionary.

9.3 Counting Words in Text Sep 30, 2016

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In this segment we bring everything together, reading a file, parsing the lines, and computing the frequencies of the words in the file. This is an important moment that pulls from everything we have learned so far.

10.1 Understanding Tuples Sep 30, 2016

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We look at the basic syntax and capabilities of Python tuples. We explore the concept of immutability, and we compare tuples to lists and strings.

10.2 Sorting Data Sep 30, 2016

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We look at how we sort lists, dictionaries, and lists of tuples in Python.

Worked Example: Sorting Dictionaries Sep 30, 2016

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Worked Example: Sorting Dictionaries

11.1 Introduction to Regular Expressions Sep 30, 2016

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We look at the syntax of regular expressions and how to use them to search through text data.

11.2 Matching and Extracting Data Sep 29, 2016

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In this segment we learn to pull out data from strings after a regular expression has found a match.

11.3 String Parsing with Regular Expressions Sep 29, 2016

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We look at how some of the string parsing we have done in earlier chapters can be easily done with regular expressions.

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