I made a typo with the __init__() in line 23, but my program runs only with this failure and shows the right result. Could some experienced OOP expert help me please.
If I correct this tripple underscore ___init__() to the correct on __init__(file_path) I get this ERROR for Line 53:
con = Contact('dummy.xml')
TypeError: Contact.__init__() takes 1 positional argument but 2 were given
Here is a dunmy.xml for test:
<?xml version="1.0" encoding = "utf-8"?>
<phonebooks>
<phonebook name="Telefonbuch">
<contact>
<category>0</category>
<person>
<realName>Dummy, Name, Street</realName>
</person>
<telephony nid="1">
<number type="work" prio="1" id="0">012345678</number>
</telephony>
<services />
<setup />
<features doorphone="0" />
<!-- <mod_time>1587477163</mod_time> -->
<uniqueid>358</uniqueid>
</contact>
<contact>
<category>0</category>
<person>
<realName>Foto Name</realName>
</person>
<telephony nid="1">
<number type="home" prio="1" id="0">067856743</number>
</telephony>
<services />
<setup />
<features doorphone="0" />
<mod_time>1547749691</mod_time>
<uniqueid>68</uniqueid>
</contact>
</phonebook>
</phonebooks>
And here my program which work with the TYPO:
import psutil
import timeit
import xml.etree.ElementTree as ET
class Phonebook:
def __init__(self, file_path):
"""Split tree in contact branches """
self.file_path = file_path
def contacts_list(self, file_path):
contacts = []
events =('start','end','start-ns','end-ns')
for event, elem in ET.iterparse(self.file_path, events=events):
if event == 'end' and elem.tag == 'contact':
contact = elem
contacts.append(contact)
elem.clear()
return contacts
#print("Superclass:",contacts)
class Contact(Phonebook):
def ___init__(file_path): # Here is a Failure !!!
super().__init__(Contact)
def search_node(self, contact, searched_tag):
contact_template =['category','person', 'telephony', 'services', 'setup', 'features', 'mod_time', 'uniqueid' ]
node_tag_list = []
list_difference = []
search_list = []
for node in contact:
if node.tag not in node_tag_list:
node_tag_list.append(node.tag)
for element in contact_template:
if element not in node_tag_list:
list_difference.append(element)
for node in contact:
if node.tag == searched_tag and node.tag not in list_difference:
search_list.append(node.text)
#print(node.text)
else:
if len(list_difference) != 0 and searched_tag in list_difference:
message = self.missed_tag(list_difference)
#print(message)
if message not in search_list:
search_list.append(message)
return search_list
def missed_tag(self, list_difference):
for m in list_difference:
message = f'{m} - not assigned'
return message
def main():
con = Contact('dummy.xml')
contacts = con.contacts_list('dummy.xml')
mod_time_list =[]
for contact in contacts:
mod_time = con.search_node(contact, 'mod_time')
mod_time_list.append(mod_time)
print(len(mod_time_list))
print(mod_time_list)
if __name__ == '__main__':
""" Input XML file definition """
starttime=timeit.default_timer()
main()
print('Finished')
# Getting % usage of virtual_memory ( 3rd field)
print('RAM memory % used:', psutil.virtual_memory()[2])
# Getting usage of virtual_memory in GB ( 4th field)
print('RAM Used (GB):', psutil.virtual_memory()[3]/1000000000)
print("Runtime:", timeit.default_timer()-starttime)
Could someone explain me, whats going wrong, please.
It works with the typo because you never need to call ___init__, and since Contact.__init__ isn't defined, Phonebook.__init__ seems to be sufficient for what you were trying to do with Contact.__init__, assuming the definition you were looking for is
def __init__(self, file_path):
super().__init__(file_path)