Python-文件处理（Write方法）

Question

I am having trouble while writing file using python

from validate_email import validate_email

result=open('output1.tsv','wb')

f=open('input.csv','r')

y=[]

result.write('Email_address\tEmail_validation\n')

for i in f:
    y.append(i.replace('\n',''))

for j in y:
    try:
         val=validate_email('%s'%j, verify=True)
    except:
         val = "Check Again"
    result.write('%s\t%s\n'%(j,val))
    print j,val

Here the variable x has some operation , It may take some time to process it.

variable y has more than a count of 500 ( input file contains 700 rows ).

But after run this program around 120 only written in the output file.

Answer 1

A more idiomatic python is

emails    = [l.strip() for l in open('input.csv','r').readlines()]
valid     = [str(validate_email(addr, validate=1)) for addr in emails]
validated = ['\t'.join(addr_val) for addr_val in zip(emails, valid)]

with of as open('output.tsv'):
    of.write('Email_address\tEmail_validation\n')
    of.write('\n'.join(validated)) # if needed ; of.write('\n')

Edit in response to the late further info from the OP

To take into account the possibility of a TimeoutError exception, that is likely raised by the smtp module, you can write an helper function

def validate_no_timeout(address):
    try:
        response = str(validate_email(address, validate=1))
    except TimeoutError:
        response = "Time Out"
    return response

and rewrite the second line in my original post to read

valid     = [validate_no_timeout(addr) for addr in emails]

NB: in the OP I see a generic reference to a Time Out error . In my code I catched the TimeoutError exception, in lack of exact info from the OP.

Answer 2

You have use a string when writing to file try changing it to:

t.write('%d\t%d\n'%(j,x))

If this doesn't fix it, try expanding the code in your question so we can help more.