Python:

with open("welcome.txt") as file: 
    ... # do stuff
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Perl:

{ # can be any block; sub, named or just empty

    open my $fh, 'welcome.txt' or die "couldn't open file!: $!";
    ... # do stuff
}

# file is auto-closed here
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"There is a context manager magic to handle failure in python."

Python isn't as 'scope context sensitive' as Perl is in some regards. In Python, the "with" context is no more than a block encapsulated within braces in Perl. Essentially, in Python, the "with" signifies what is called a 'block' or 'scope' in Perl. It simply means everything indented underneath of this "with" will be automatically garbage collected/files closed when the block (ie. context) exits (in basic usage).