Python Crash Companion

Chapter 10 · Part I: Basics

Files and Exceptions

Book: Ch. 10, 'Files and Exceptions', pp. 183–208

Pages this chapter covers

Section titles and printed pages from the 3rd edition. Notes below use the full citation.

  • Reading from a Filep. 184
    • Reading the Contents of a Filep. 184
    • Relative and Absolute File Pathsp. 186
    • Accessing a File’s Linesp. 186
    • Working with a File’s Contentsp. 187
    • Large Files: One Million Digitsp. 188
    • Is Your Birthday Contained in Pi?p. 189
  • Writing to a Filep. 190
    • Writing a Single Linep. 190
    • Writing Multiple Linesp. 191
  • Exceptionsp. 192
    • Handling the ZeroDivisionError Exceptionp. 192
    • Using try-except Blocksp. 193
    • Using Exceptions to Prevent Crashesp. 193
    • The else Blockp. 194
    • Handling the FileNotFoundError Exceptionp. 195
    • Analyzing Textp. 196
    • Working with Multiple Filesp. 197
    • Failing Silentlyp. 198
    • Deciding Which Errors to Reportp. 199
  • Storing Datap. 201
    • Using json.dumps() and json.loads()p. 201
    • Saving and Reading User-Generated Datap. 202
    • Refactoringp. 204
  • Summaryp. 207

Notes

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The section list above is only a map of the book, with printed page numbers, so you can read the chapter and come back. Original notes for this chapter are still to come.