In the document.
NetID.txt
rxwafvi2
tgdjlh2
qgdp8
rywwse4
czhih2
pqzmhgb6
mjswgg4
vviybz5
uqgrho5
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dcj9
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htk4
hcenz5
UIN.txt
571552
736960
869095
361166
600994
509906
812709
888207
105368
652863
995159
542415
955283
295197
45191
433994
92094
617798
219694
779954
995061
219412
19917
563699
67049
373909
821075
430393
352340
511052
450393
445878
515674
555422
971581
518665
345270
853970
160492
76366
355835
378180
271144
463395
504894
166495
608059
860912
784936
523108
92636
800462
325154
932485
283334
408602
658760
152844
272243
797430
59884
445681
799713
464816
984807
191309
135886
119179
100261
362949
398985
189398
582741
62644
909784
521168
442276
346397
938361
236370
51520
707540
293881
730894
156660
749644
706037
524054
255954
426135
932946
12952
613082
395510
696670
875550
327950
642532
281841
580684
622340
141060
428797
150438
841298
906077
105983
368343
945034
484123
894100
463883
375892
267881
226082
295440
169170
518429
483309
219224
35081
366537
69601
326868
877700
225583
147380
625581
638487
938967
39221
952909
633782
519190
539667
212597
868609
998618
965796
692192
600139
372456
258296
699052
520704
866173
384551
503914
300680
175249
701697
591251
632886
800255
128021
117870
89646
394725
861206
704089
697116
345609
390491
470600
395943
451428
496197
696040
976727
272684
312881
103871
144062
725638
58977
541647
638835
780060
529346
234499
345032
70535
735517
509128
448541
615085
695411
79916
493856
871867
339661
617564
371470
646484
497743
237464
879027
96473
806536
262068
856503
586057
821574
704145
883301
147725
226011
433509
343369
203092
190983
358397
306373
286911
684082
801231
523429
99863
290399
967743
182619
488874
377155
104792
713988
319122
18947
102095
271030
893615
689680
667699
938255
33174
680324
930468
766411
73944
293347
937592
694915
760598
193219
475650
668499
912621
207655
898187
65289
78779
306865
174927
896433
370022
140639
197447
726475
938523
56246
744984
500575
401276
217394
757298
426308
537734
110529
799362
775124
668621
797969
287797
107093
944700
610352
383188
436815
222829
211808
733437
11259
212963
557944
500871
273069
377095
616657
81822
177345
653604
481594
952994
78350
950283
479936
73370
696689
106571
804277
311417
675961
374173
480554
422905
439998
893474
202836
715278
335914
499701
911016
534162
664971
945036
223242
518485
488599
515227
920134
439686
247644
672101
500120
352090
635569
883218
341800
952535
582312
898490
793194
474770
42789
407689
553247
599691
608803
639334
629949
635899
499819
226414
606479
269108
646795
790042
453796
503593
995884
5452
216850
14507
30708
528285
565283
590821
726034
581872
882084
41096
223555
996885
444669
54396
362062
308242
716918
340949
701697
800773
911437
720381
702648
738991
88983
828192
209827
661934
482462
869165
472259
396045
285288
170471
718192
445078
642201
473275
798166
652726
348897
203154
666931
546925
677243
175002
760926
409721
322928
796855
281592
725638
517027
775710
800157
440258
397080
551167
104988
320232
272651
245830
946025
713025
145774
625303
208598
478741
699483
622377
47589
380503
520469
939695
803889
97804
854203
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MCS 260 Intro to Computer Science Spring 2022
Project 2
Due in Gradescope by Wednesday, March 2 by 11:59pm
RESOURCES ALLOWED: This project is to be completed individually. The only resources you
may use when completing the project are
� Material posted on the course Blackboard page
� The course textbook and “further resources” listed in the Syllabus
If you are unsure about whether a resource is allowed, then please ask your instructor. You should
also consult the course syllabus for a further explanation of academic honesty.
WHAT TO SUBMIT: You will submit two Python files project2-create-
and project2-login-
are replaced with your last and first name, respectively.
The first lines of each of your files should include the following:
#
#MCS 260 Spring 2022 Project 2
#I hereby attest that I have adhered to the rules for projects as well as UIC’s
Academic Integrity standards while completing this project.
The rest of your file should perform the actions described below.
ACTIONS: 1. In the project2-create-
PasswordGenerator. This function will generate a password with the following conditions:
� the password should be between 4 and 8 characters long, with each length being equally
likely to be chosen
� the only characters allowed in the password are upper and lower case vowels, so AEIOUaeiou
� adjacent characters of the password cannot be the same vowel; for example AEeoiu is not
allowed since E and e are adjacent, and IoeaaUE is not allowed since a and a are adjacent.
2. Retrieve the two files UIN.txt and NetID.txt from Blackboard. Note that the ith line of
UIN.txt is the UIN corresponding to the ith NetID listed in NetID.txt. In the
project2-create-
a dictionary AllUsers where the key:value pair is as follows:
The key is the user’s UIN value as a string padded with 0’s at the beginning so that the UIN
is seven characters long. For example, the first UIN is 571552, so the first key should be
“0571552”.
The value associated to the key is a dictionary with two keys: “email” and “password”. The
value associated to “email” should be the user’s NetID with @uic.edu added to the end. The
value associated with “password” should be randomly generated using the PasswordGenerator
function described in the step above.
3. Note that there are duplicate entries in the UIN.txt and NetID.txt files, so a user should
not be added to the dictionary twice. If a second (or later) instance of the same UIN is
encountered, it should be ignored (as well as the corresponding NetID). Only the first instance
should be considered. IMPORTANT NOTE: Yes you could manually look through and remove
the duplicates, but you must remove the duplicates as part of your program.
4. After your dictionary is created, you will write all of its data to a file called users.txt in the
format described. Assume we have the following entry in AllUsers:
University of Illinois at Chicago page 1
MCS 260 Intro to Computer Science Spring 2022
AllUsers[UIN] = {
“email” =
“password” =
}
For this UIN, you will print the following two lines of code (AND ONLY THESE TWO LINES)
to the users.txt file:
5. Now we will talk about the project2-login-
prompt the user for their email (using input) and their password1 (again using input). You
will then check the users.txt file to see if the credentials are proper. There are three cases
that could happen:
(a) The email and password match for a user, in which case you will print “You have successfully
logged in!”
(b) The email is in the file, but the password does not match, in which case you will print
“That password does not match the email provided.”
(c) The email is not in the file, in which case you will print “That email is not in our
system.”
Important Note: It is poor practice to give a user the print statements in parts (b) and (c)
because you are potentially giving information to a hacker. In fact, in part (b) you’re telling
them that the email they supplied is actually in the system. In part (c), you’re telling them
that email is NOT in the system. A better solution, in any case where the user does not have
proper credentials is to just tell them “Incorrect login. Please try again.” However,
we are going to employ the method described in the three cases above, even if it is not a best
practice.
6. ADD COMMENTS to clarify your choice of variables and to indicate what is happening at
different steps of the program. A good rule of thumb is one line of comments for every four
to five lines of code. Your comments will be checked to see that you understand how your
code is structured and what it is doing in the big picture. Code lacking in comments will be
penalized!
1The input function is not ideal for this purpose since it displays the user’s password as it is typed. A better option
would be to use the getpass method of the getpass module which acts just like input except that it hides the typed input.
You do not need to use this, but it is worth pointing out.
University of Illinois at Chicago page 2
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