CODEWITHSUNDEEP
pythonpandas
user3234112
user3234112

Reputation: 113

maximum recursion depth exceeded (pandas)

I have a data frame

df= pd.DataFrame({'PatientID': [1,2,3,4,5,6,7,8],'99' : ['1','0','1','0','1','0','1','0'],'75' : ['0','0','1','0','0','1','1','0'],'C604' : ['1','0','1','0','1','0','1','0'],'C602' : ['0','0','1','0','1','0','1','0'],'C601' : ['1','0','0','0','1','0','1','0'],'C603' : ['0','0','1','1','1','0','1','0'],'C605' : ['0','1','1','0','0','0','1','0'],'C606' : ['0','1','1','1','1','0','1','0'],'44' : ['1','0','1','0','1','0','1','0'],'L239' : ['0','0','1','1','1','0','1','0'], '32' : ['1','0','1','0','1','0','1','0'],}).set_index('PatientID')

When I try to add columns by doing 

df.eval('(`99`+`75`)')
I am getting this error

RecursionError: maximum recursion depth exceeded while calling a Python object

Trying to understand what this means and how I can solve this

Upvotes: 1

Views: 3353

Answers (1)

Esa Tuulari
Esa Tuulari

Reputation: 169

Maybe easiest to change the datatype to int and then sum the columns '99' and '75' with the eval. If you really want to use that eval() function.

df = df.astype('int32')

df['new_column'] = df.eval('(`99`+`75`)')

Without eval() it is simply:

df['new'] = df['99'] + df['75']

Upvotes: 2

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