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| Started by | Ian Kelly <ian.g.kelly@gmail.com> |
|---|---|
| First post | 2016-02-04 07:30 -0700 |
| Last post | 2016-02-04 07:30 -0700 |
| Articles | 1 — 1 participant |
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Re: eval( 'import math' ) Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-04 07:30 -0700
| From | Ian Kelly <ian.g.kelly@gmail.com> |
|---|---|
| Date | 2016-02-04 07:30 -0700 |
| Subject | Re: eval( 'import math' ) |
| Message-ID | <mailman.64.1454596256.30993.python-list@python.org> |
On Thu, Feb 4, 2016 at 6:33 AM, 阎兆珣 <yanzhaoxun@greendh.com> wrote: > Excuse me for the same problem in Python 3.4.2-32bit > > I just discovered that <eval()> function does not necessarily take the > string input and transfer it to a command to execute. > > So is there a problem with my assumption? eval evaluates an expression, not a statement. For that, you would use exec. If you're just trying to import though, then you don't need it at all. Use the importlib.import_module function instead to import a module determined at runtime. This is more secure than eval or exec, which can cause any arbitrary Python code to be executed.
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