AttributeError: type object ' ' has no attribute 'write'
My code runs into an AttributeError and I don't know how to fix it
this is my class:
class Reservation: def __init__(self, passengerName, departureCity, destinationCity, dateOfTravel, timeOfTravel, numberOfTickets): self.passengerName = passengerName self.departureCity = departureCity self.destinationCity = destinationCity self.dateOfTravel = dateOfTravel self.timeOfTravel = timeOfTravel self.numberOfTickets = numberOfTickets reservationList = list()
with open("reservation.txt", "w") as file: for reservation in reservationList: reservation.write(reservation.passengerName + "," + reservation.departureCity + "," + reservation.destinationCity + "," + reservation.dateOfTravel + "," + reservation.timeOfTravel + "," + str(reservation.numberOfTickets) + "\n") file.close()
File "C:/Users//Desktop/pld/ticket_reservation5.py", line 183, in <module> main() File "C:/Users//Desktop/pld/ticket_reservation5.py", line 176, in main reservation.write(reservation.passengerName + "," + reservation.departureCity + "," + reservation.destinationCity + AttributeError: type object 'Reservation' has no attribute 'write'
Your individual Reservation objects don't have write attributes. You want to call the file's write method and use the object's data to populate the string.
with open("reservation.txt", "w") as file_: for reservation in reservationList: file_.write(reservation.passengerName + .... + "\n")
Side note, since you're using a context manager (with open() as _), you don't have to do
file.close(). The manager will do it for you.
file is a builtin so you don't want to overwrite that. You'll want to append a single underscore to the variable name to differentiate it as described in PEP8
Python error: AttributeError: type object 'MyClass' has no attribute , Remove the parenthesis from channel() . It is a field, not a function. Add parenthesis to MyClass so that the constructor is called. self.channel （AttributeError: type object 'TFLiteConverter' has no attribute 'from_keras_model'） LINYOUWEI0804 added the TFLiteConverter label Apr 22, 2020 tensorflow-butler bot assigned amahendrakar Apr 22, 2020
reservation is just a iterator to traverse through the list reservationList,it doesn't have any write functions defined . There are three ways to read data from a text file.
read() : Returns the read bytes in form of a string. Reads n bytes, if no n specified, reads the entire file. File_object.read([n]) readline() : Reads a line of the file and returns in form of a string.For specified n, reads at most n bytes. However, does not reads more than one line, even if n exceeds the length of the line. File_object.readline([n]) readlines() : Reads all the lines and return them as each line a string element in a list. File_object.readlines()
here is an example for opening a file and reading it:
file1 = open("myfile.txt","r") print(file1.read()) print(file1.readline())
AttributeError: type object 'Thing' has no attribute 'objects' · Issue #8 , Hi, I believe that I have configured my project according to your tutorial and demo project, but I am encountering an error: AttributeError: type # Convert to an Enum using the type as a constructor. Assumes a direct match is found. res = type_(value) # FIXME this is a hack to fix a deeper underlying issue. A refactor is due. elif is_collection(type): if is_mapping(type): k_type, v_type = type_.__args__ E AttributeError: type object 'dict' has no attribute 'args'`
Do it like this and make sure your last string in your list has a
\nso that it every time a different user put in information it writes in a new line:
with open("file_name.txt", 'a') as f: # "a" is used to append data to a file that is it # does not delete previously written data instead appends to it also f is the variable # which stores the file and could be anything for reservation in reservationList: f.write(reservation) print("done")
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