KnowCardPython · Useful Modules & Recipes
You have lst = [1, [2, 3]], do c = copy.copy(lst), then c[1].append(9). Does lst's inner list change? Why?
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More in Useful Modules & Recipes
You want to open a help page in the user's actual default browser from a script, with no GUI dependency. What does the standard library give you?
Your CLI prompts for a password with input(). A reviewer flags it as a security bug. Why, and what's the fix?
What's the difference in what gets shown on screen between getpass.getpass() and input() while the user types?
Which function returns the login name of the current OS user, without you parsing environment variables yourself?
What kind of object is a generator that uses value = (yield) rather than yield expr?
What does this print?
```
def printer():
while True:
v = (yield)
print(v)
p = printer()
p.send(87)
```
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