'BinOp' object has no attribute 'value' Issue while calling global functions in eval and importing numpy

[anjsudh]

import pandas as pd
from  numpy import *
pd.eval("floor(1)")
Output: 1.0
pd.eval("floor(1+2)")
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/eval.py", line 291, in eval
    truediv=truediv)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 739, in __init__
    self.terms = self.parse()
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 756, in parse
    return self._visitor.visit(self.expr)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 321, in visit
    return visitor(node, **kwargs)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 327, in visit_Module
    return self.visit(expr, **kwargs)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 321, in visit
    return visitor(node, **kwargs)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 330, in visit_Expr
    return self.visit(node.value, **kwargs)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 321, in visit
    return visitor(node, **kwargs)
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 579, in visit_Call_35
    new_args = [self.visit(arg).value for arg in node.args]
  File "/Users/sanjana/simulation-service/venv/lib/python3.7/site-packages/pandas/core/computation/expr.py", line 579, in <listcomp>
    new_args = [self.visit(arg).value for arg in node.args]
AttributeError: 'BinOp' object has no attribute 'value'

[WillAyd]

Thanks for the report. Investigation and PRs are always welcome

[SurajH1]

take

[SurajH1]

After looking at the documentation, I noticed that evaluating global functions is not an explicit property of pd.eval(). However, it does seem like a useful addition and something that should be a property of the function. @WillAyd can we also add a request to update documentation?

[mroeschke]

This looks to work on master, I suppose it could use a test.

In [19]: pd.__version__
Out[19]: '1.1.0.dev0+1390.gf3fdab389'

In [20]: pd.eval("floor(1)")
    ...:
Out[20]: 1.0

In [21]: pd.eval("floor(1+2)")
Out[21]: 3.0