Python errors: what IndentationError, NameError and TypeError mean

The last line names the kind of error and the reason; the lines above show the file and line number. Read from the bottom up.

• IndentationError — wrong indentation; use 4 spaces and do not mix tabs and spaces.
• SyntaxError — a colon, bracket or quote is missing.
• NameError — the variable is not defined or misspelled (Name ≠ name).
• TypeError — an operation on the wrong type, e.g. text + number.
• IndexError — using a position that is not in the list.
• ModuleNotFoundError — the library is not installed: pip install name.

try:
    x = int(input("Number: "))
except ValueError:
    print("That was not a number")