****Not able to append row in new Data Frame** Any affort would be appriciated**
new_df=pd.DataFrame()
z=pd.DataFrame()
x=input("input number")
x=int(x)
for i in range(x):
y=input("enter srting")
z=usda[usda.Description.str.contains("y")]
new_df.append(z,ignore_index = True)
print(new_df)