realpython/book1-exercises

Book 1 -- Exercises for the book

Course materials for Real Python Course 1: Introduction to Python

book1-exercises's Issues

Line of code from Fundamental Review does not work

print("four: {}".format()
four[0][5] == 'n' and four[0][0] == "P" and four[2][1] == "u"
)

This gives a syntax error. Changing it to this:

print("four: {}".format(
four[0][5] == 'n' and four[0][0] == "P" and four[2][1] == "u"
))

fixes the issue.

urlopen connection to you test HTTPS URL

I am following you documentation to obtain the Aphrodite web page with the following code:

from urllib.request import urlopen

my_address = "https://realpython.com/practice/aphrodite.html"

html_page = urlopen(my_address)
html_text = html_page.read().decode('utf-8')

print(html_text)

I am getting SSL errors. When I add the cafile option, I get invalid certificate error. How can I makke this work?

11-1.py

Text needs to be encoded by Unicode to write to .txt file ==> pdf_txt.encode("utf-8"). Otherwise I get following error.

Traceback (most recent call last):
File "/Users/xamarind/Documents/pdf_reader.py", line 20, in
output_txt_file.write(pdf_txt)
TypeError: write() argument must be str, not bytes

book1-exercises/chp08/cats_with_hats.py

cats = [False] * (100 + 1) it creates 101 number of cats when we need only 100 by the description.

>>> len([False] * (100 + 1))
101

You have 100 cats.

Missing content?

Does anybody have chapter 6?

A bit shorter solution

cats={}
for i in range(1,101):
cats[i]=0

for round in range(1,101): # 100 rounds
for cat in cats: # 100 cats
if cat % round == 0:
cats[cat] = abs(cats[cat]-1) # 1 = hat, 0 = no hat

for i in cats:
if cats[i]==1:
print "Cat with hat: {}".format(i)

Cant find the looping part in the first part of the book

Found it

13.1py review exercise does not work and code not the same as pdf

Python 3.6.7 (default, Oct 25 2018, 09:16:13)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license()" for more information.

================ RESTART: /mnt/c/projects/realpy/webtest.py ================
Traceback (most recent call last):
File "/mnt/c/projects/realpy/webtest.py", line 7, in
html_page = urlopen(my_address)
File "/usr/lib/python3.6/urllib/request.py", line 223, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib/python3.6/urllib/request.py", line 532, in open
response = meth(req, response)
File "/usr/lib/python3.6/urllib/request.py", line 642, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python3.6/urllib/request.py", line 570, in error
return self._call_chain(*args)
File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
result = func(*args)
File "/usr/lib/python3.6/urllib/request.py", line 650, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden

Looking for part 1 chapter 6 solutions

They seem to have been omitted.

update file paths

path = "C:/Real Python/refactor/chp10/practice_files/little pics"