KnowCardPython · Strings, Bytes & Formatting
Why prefer "".join(parts) over building a string with += in a loop?
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More in Strings, Bytes & Formatting
What does this print?
```
print(f"{3.14159:.2f}")
```
What does this print?
```
s = "hello"
s.replace("l", "L")
print(s)
```
Does calling s.upper() (or .strip(), .replace(), etc.) modify the string s in place?
What does this raise or print?
```
print("P" + b"ython")
```
What does this raise?
```
b = b"Püthøn"
```
You have str text and need to send it over a byte-oriented channel (network/file). Which direction is encode vs decode?
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