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use python IDEL

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Problem 3 Files. Read the following code and answer the next five questions about it. The contents of the files list 1.txt and list2.txt are the following (given side by side): list 1. txt content: list2.txt content 2 apples 2 apples 3 oranges 1 loaf of bread 2 eggs 2 eggs 1 cereal box # the program code starts here filename1 = "list 1.txt" filename2 - "list2.txt" filename3 - "listdiff.txt" with open (filename1,"r") as f1, open (filename2,"r") as f2. open (filename3,"w") as f3: for line in f1: if line.strip() == f2.readline().stripo: print (line, end -"") else: f3.write(line)

Answer 1

list 1. tut lista tut 2 apples 3 2 apples oranges eggs I cereal box I loaf of tread bread 2 2 eggs # code 3= " list diff.tut" with open (. filename = "list rotat" filename 2 "list 2. tut" filename open (filenames, "h") as geil open (filenamed "A" as far ) open (filenames, "W") as f3 : for line in fii e strup () == /2 readlined strip) : print I line, end = "") fs write (line) ( # Loop linee else

Execution in read mode and lista as write made After opening lists as as fi list diff as f dia and in # Loop line. & apples O line = 2 apples and f2 readine () > & apples ] estrup () få reactive () istrup (9 print live with end = 11 output strup () will remove leading traiding l spaces by default) Here line and readline () trailing newline character so strup () is used to remoue that newline the and characters both reads line from file to but with Lo punting line with end = 1 will eventically takes the ursor She newline character as the not to next line ( because of only print ends statement with character) line branges fa a readline () - 1 I loaf of line istublit fe readine () strip 9 any 3 bread

so op m ^ else will be enecuted line will be be printed in fo that is listaff tut 3 f3 new line oranges Head of bread ③ line eggs with end wwith f3 =) 3 2 eggs fa readline () so print line z apples output eggs line I sereal box t2 "readline () -nothing else will be executed I creat box in list t diff (fs) betap with newline I toaf of bread listdiff. tut I cereal bon 3 oranges I cereal box

output tut 2 apples 2 egy listaff Llory of trend 3 oranges I cereal bow 2 lines will get printed 4 which shown above Ou standard output apples execution part so option (3) - 2 eggs 2 correct No generate any error instead it this file referred 912 Corrent answer is y file does not exist It will not will create its because this write mode on the other read made and does will rhon buu file by filename 3 h opened ww hand, if it had been opened in not exist then it generate But Here answer 1 No file is opened in in write mode

913 2 lines will shown be printed in enecution part en listdip tut file listdiff tat "oranges loaf of bread so option (4) - 3 z is correct I cereal box 914 updated lista. tut 2 eggs 1 loaf of bread I apples #enecution code again 7 live 2 apples So with neuline 2 apples th- readtrie () will be printed in listdij list diff .tat 2 apples 3 oranges loaf of oranges will be printed in listaff ② line = 3 bread with so 3

newline list diffitute 2 apples 3 esenges ② line 2 + 2 apples with 2 eggs in list diff will get printed newline est diffitat & apples 3 oranges 3 2 6 line ureal newline I cereal box t fz realine () = nothing bone will get printed in listall list difp. tak with of apples 3 oranges 3 2 eggs I cereal bon

how lines are New question is standard output many printed to but here standard listi output remains empty and all data into listdiff yous So o lines gets printed У output option (2) =) o is correct ausuler As shown just above 015 4 linies gets printed execution part listadiff, tut so option (3) =) 4 is correct answer & apples oranges 3 steg 2 eggs I cereal box