eval with print stmt

[Art]

Hello,

I can't seem to get eval or compile to accept the print stmt, or any
complicated statements.

The documentation I've looked out doesn't explain why this is.

ex:

eval("print('foo')") Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "<string>", line 1
print('foo')

but this works: eval('sys.__stdout__.write("foo\\n")') foo

also, I can't get eval to make callable objects. is this possible? eval("def foo():\n return 'foo'")

Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "<string>", line 1
def foo():
^
SyntaxError: invalid syntax

I'd like to have a command line parameter be turned into a callable
statement with an expected environment (a la awk) but I can't seem to
get this working. (I get the same behavior for compile.

Thanks,
A

[Mel Wilson]

In article <6c**************************@posting.google.com >,
ab****@prontomail.com (Art) wrote:

Hello,

I can't seem to get eval or compile to accept the print stmt, or any
complicated statements.

The documentation I've looked out doesn't explain why this is.

eval only works with expressions, and `print ...` is a statement.
So is `def ...` .

exec should do what you want.

Regards. Mel.