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Eval (evaluate Python code) — trepan3k 1.0 documentation

Eval (evaluate Python code)

eval python-statement

Run python-statement in the context of the current frame.

If no string is given, we run the string from the current source code about to be run. If the command ends ? (via an alias) and no string is given, the following translations occur:

assert <expr>         => <expr>
{if|elif} <expr> :    => <expr>
while <expr> :        => <expr>
return <expr>         => <expr>
for <var> in <expr> : => <expr>
<var> = <expr>        => <expr>

The above is done via regular expression matching. No fancy parsing is done, say, to look to see if expr is split across a line or whether var an assignment might have multiple variables on the left-hand side.

Eval Examples
eval 1+2  # 3
eval      # Run current source-code line
eval?     # but strips off leading 'if', 'while', ..
          # from command

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