python - How can I read the content of a file streamed with csv.writer? -


i have complex structure involves object (called mc class myclass in following simplified code) supposed to, on occasions, add lines csv file (test1.csv , test2.csv in example).

the program server need stay waiting in end. here replaced whole part pending input noticed same problem occurs in case.

here simplified program:

import csv class myclass(object):     def __init__(self):         csvfile = open("./test1.csv", 'w', encoding='utf-8', newline='')         stream = csv.writer(csvfile, delimiter=',', quotechar='|', quoting=csv.quote_minimal)         stream.writerow(["stream created"])          csvfile2 = open("./test2.csv", 'w', encoding='utf-8', newline='')         self.stream2 = csv.writer(csvfile2, delimiter=',', quotechar='|', quoting=csv.quote_minimal)         self.stream2.writerow(["stream2 created"])     def do(self):         self.stream2.writerow(["done"])  mc = myclass() mc.do() _ = input("doing pause")

so here create object "mc", creating @ same time 2 streams. stream1 gets closed when initialization over, 1 line being added, stream2 kept attribute later use.

if leave input pending can notice both test1.csv , test2.csv created, test1.csv has line expect , test2.csv empty (i expect have lines "stream2 created" , "done"). if make program finish test2.csv becomes filled needed.

my problem check contents of files without ending server , keep possibility write more of them. how can that?


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