python - Invalid syntax error when applying lambda for multiple columns processing -

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i have following code should put either 0 or 1 column indicator depending on if-then rules (values of columns t , s):

rawdata_base['indicator'] = rawdata_base.apply(lambda row:                                     '1' if row['t']=='2' , str(row['s']).isdigit() , int(row['s'])<15                                     else '0' if row['t']=='2' , str(row['s']).isdigit() , int(row['s'])>=15                                    else '1' if row['t']=='1' , str(row['s']).isdigit() , int(row['s'])<35                                     else '0' if row['t']=='1' , str(row['s']).isdigit() , int(row['s'])>=35                                    else '0' if 'a' in row['s']                                    else '0', axis 1)

i cannot figure out why error invalid syntax pops @ line else '0', axis 1

you can't stack conditionals in python. ternary conditional operators can take 3 inputs (hence ternary): a if b else c.

if want stack them, don't think want lambda here. make own function:

def myfunc(row):     if row['t']=='2' , str(row['s']).isdigit() , int(row['s'])<15:         return '1'     elif row['t']=='2' , str(row['s']).isdigit() , int(row['s'])>=15:         return '0'     ...

then in .apply function, pass myfunc


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