Evaluate a single Python expression, in a way analogous to the Python
eval()
built-in function.
py_eval(code, convert = TRUE)
The result produced by evaluating code
, converted to an R
object when convert
is set to TRUE
.
A single Python expression.
Boolean; automatically convert Python objects to R?
py_eval()
only supports evaluation of 'simple' Python expressions.
Other expressions (e.g. assignments) will fail; e.g.
> py_eval("x = 1")
Error in py_eval_impl(code, convert) :
SyntaxError: invalid syntax (reticulate_eval, line 1)
and this mirrors what one would see in a regular Python interpreter:
>>> eval("x = 1")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 1
x = 1
^
SyntaxError: invalid syntax
The py_run_string()
method can be used if the evaluation of arbitrary
Python code is required.