Python Distilled

Welcome! This repo contains errata related to the Python Distilled book by David Beazley. If you'd like to contribute, please submit an issue or pull request.

• Table 1.2. Description for round(a, [n]) should state that it rounds to the nearest multiple of 10 to the -nth power.

• Section 1.8, pg. 15. ['SYM', '123', '456.78'] should include the newline and be ['SYM', '123', '456.78\n']

• Section 2.7, pg. 44. The function invocation of foo(3, a) should be f(3, a).

• Section 2.14, pg. 52. The list comprehension example should use squares instead of nums.

nums = [1, 2, 3, 4, 5]
squares = [ ]
for n in nums:
    squares.append(n*n)

• Section 4.8, pg. 88. compute_cost(prices, quantities) should be compute_cost(prices, units).

• Section 6.4, pg. 145. The code for print_matching() should be as follows:

def print_matching(lines, substring):
    for line in lines:
        if substring in line:     # line instead of lines
	    print(substring)

• Section 7.23, pg. 200. Typos in the date today() constructor. Should be

@classmethod
def today(cls):
    t = time.localtime()
    self = cls.__new__(cls)    # Make instance
    self.year = t.tm_year
    self.month = t.tm_mon
    self.day = t.tm_mday
    return self

• Section 7.26, pg. 208. Typo (missing "that"). "A proxy is an object that exposes..."

• Section 7.28, pg. 212. del f.owner should be del a.owner in example.

• Section 9.3, pg. 250. format(x, '<*10.2f') should be format(x, '*<10.2f').

• Section 9.3, pg, 252. 'Value is {val:<*10.2f}'.format(val=x) should be 'Value is {val:*<10.2f}'.format(val=x).

• Section 9.9, pg. 264. for filename in path.Path('dirname').glob('*.txt') should be for filename in pathlib.Path('dirname').glob('*.txt').

• Section 9.15.19, pg. 285. serv should be server in the SMTP example:

server = smtplib.SMTP('localhost')
server.sendmail(fromaddr, toaddrs, msg)
server.quit()

The following individuals have contributed errata:

• Said van de Klundert
• David Dyck
• Scythal
• Feng Guo
• Xavier Noria
• Evan Friedenberg
• Karthik-d-k
• Marc Hertzog
• Jack Rubin