pandas - Type Conversion in python ... - Stack Overflow
https://stackoverflow.com/questions/4191737929.01.2017 · df['a'] returns a Series object that has astype as a vectorized way to convert all elements in the series into another one. df['a'][1] returns the content of one cell of the dataframe, in this case the string '0.123'.This is now returning a str object that doesn't have this function. To convert it use regular python instruction: type(df['a'][1]) Out[25]: str float(df['a'][1]) Out[26]: 0.123 ...
AttributeError: type object 'User' has no attribute 'query ...
iqcode.com › code › pythonJan 29, 2022 · AttributeError: type object 'User' has no attribute 'query'. Krish. import os import sys from sqlalchemy import Column, ForeignKey, Integer, String, DateTime, Boolean, Float, Date, Table from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship from sqlalchemy import create_engine from flask_security import ...