# coding: utf-8
import json
from expr import expression_from_dict, Expr, NumExpr
pi_100 = Expr(operation_name='*',
arguments=[Expr(operation_name='/',
arguments=[NumExpr(number=22),
NumExpr(number=7)]),
NumExpr(100)])
resolved = pi_100.resolve()
expected_resolved = 314.2857142857143
serialised = pi_100.serialise(json.dumps)
expected_serialised = (
'{"__type__": "Expr", "operation_name": "*", "arguments": '
'['
'{'
'"__type__": "Expr", '
'"operation_name": "/", '
'"arguments": '
'['
'{'
'"__type__": "NumExpr", '
'"number": 22.0'
'}, '
'{'
'"__type__": "NumExpr", '
'"number": 7.0'
'}'
']'
)
index, data, columns = dataframe_flat()
dataframe0 = pandas.DataFrame.from_records(index=index, data=data, columns=columns)
index, data, columns = dataframe_flat()
dataframe1 = pandas.DataFrame.from_records(index=index, data=data, columns=columns)
expr = Expr('*',
[
Expr('-',
[
DataFrameExpr(dataframe0),
Expr('+',
[
NumExpr(32),
DataFrameExpr(dataframe1),
]
)
]
),
Expr(operation_name='/',
arguments=[NumExpr(number=22),
NumExpr(number=7)])
]
)
resolved = expr.resolve()
def test_dataframe_numeric():
print('')
print(expr.resolve())
expr.graph().write_png('expr.png')
expr.serialise(json.dumps)
