pandas continues update csv with exception
def appendDFToCSV_void(df, csvFilePath, sep=","):
import os
if not os.path.isfile(csvFilePath):
df.to_csv(csvFilePath, mode='a', index=False, sep=sep)
elif len(df.columns) != len(pd.read_csv(csvFilePath, nrows=1, sep=sep).columns):
raise Exception("Columns do not match!! Dataframe has " + str(len(df.columns)) + " columns. CSV file has " + str(len(pd.read_csv(csvFilePath, nrows=1, sep=sep).columns)) + " columns.")
elif not (df.columns == pd.read_csv(csvFilePath, nrows=1, sep=sep).columns).all():
raise Exception("Columns and column order of dataframe and csv file do not match!!")
else:
df.to_csv(csvFilePath, mode='a', index=False, sep=sep, header=False)