KanyeW
Programmer Extraordinaire
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Introduction:
In this tutorial we will continue making our local user management system in Python. In part three we made the remove record function which paired with a lot of other new functions.
Important:
Although I keep interchanging the words records and users, this system can be used to keep any records of information, but I am using this example as a user management system.
Now:
This tutorial we are going to make a search/find option, and a clean file option.
Search/Find Options:
Since in the previous we made a function named getMatchedRecords to return the records matching a certain string or piece of information entered by the user, we can use this to efficiently work as a search/find function as well. First add the choice...
Update the instructions...
Now for the findUser function. We take information from the user through a while loop (while they haven't entered the word 'exit' (without single quotes)) then we print each record returns from the getMatchedRecords function while parsing the information line...
Clearing Files:
Next we have the clearing/resetting the file option. First add the option to the main menu system...
Update the instructions...
As you can see the new option/choice runs a function named resetFile. This function simply creates a new writing file stream to open the file path, writes a blank string, and closes/saves the stream. Simple.
In this tutorial we will continue making our local user management system in Python. In part three we made the remove record function which paired with a lot of other new functions.
Important:
Although I keep interchanging the words records and users, this system can be used to keep any records of information, but I am using this example as a user management system.
Now:
This tutorial we are going to make a search/find option, and a clean file option.
Search/Find Options:
Since in the previous we made a function named getMatchedRecords to return the records matching a certain string or piece of information entered by the user, we can use this to efficiently work as a search/find function as well. First add the choice...
- elif
(
user
is
4
)
:
- findUser(
)
;
Update the instructions...
- print
(
"Welcome to my local file user management system [Created by Yorkiebar]. There are the following options; 0=exit, 1=add user, 2=list users, 3=remove user, 4=find user, 10=change file path...\n
"
)
Now for the findUser function. We take information from the user through a while loop (while they haven't entered the word 'exit' (without single quotes)) then we print each record returns from the getMatchedRecords function while parsing the information line...
- def
findUser(
)
:
- user
=
input
(
"Enter the information to search for... (exit when done. "
)
- information =
""
- while
(
user
.lower
(
)
!=
'exit'
)
:
- if
(
information >
""
)
:
- information +=
"\t
"
+ user
.lower
(
)
- else
:
- information +=
user
.lower
(
)
#First information, no tab needed
- user
=
input
(
"Enter more information or 'exit'... "
)
- for
record in
getMatchedRecords(
information)
:
- print
(
record)
Clearing Files:
Next we have the clearing/resetting the file option. First add the option to the main menu system...
- elif
(
user
is
11
)
:
- resetFile(
)
Update the instructions...
- print
(
"Welcome to my local file user management system [Created by Yorkiebar]. There are the following options; 0=exit, 1=add user, 2=list users, 3=remove user, 4=find user, 10=change file path, 11=reset file...\n
"
)
As you can see the new option/choice runs a function named resetFile. This function simply creates a new writing file stream to open the file path, writes a blank string, and closes/saves the stream. Simple.
- def
resetFile(
)
:
- file
=
open
(
fileName,
'w'
)
- file
.write
(
''
)
- file
.close
(
)