Examples

• E4.1Assignment vs. the comparison operator
• E4.2Exception tracebacks
• E4.3String representation of vectors
• E4.4Vector cross product
• E4.5try ... except ... else ... finally
• E4.6A simple dictionary of Roman numerals
• E4.7A simple database of astronomical objects
• E4.8Word lengths in the first line of the Gettysburg Address
• E4.9Mersenne primes
• E4.10The matrix transpose by list comprehension
• E4.11lambda functions
• E4.12Sorting methods
• E4.13Triangular numbers
• E4.14Assignment expressions (the walrus operator)
• E4.15Issuing a usage method
• E4.16Batch renaming of files
• E4.17The Monty Hall problem
• E4.18A simple Python class
• E4.19The random-flight polymer
• E4.20A 2D vector class
• E4.21A simple 2D molecular dynamics simulation