python append to file
with open(filename, "a+") as f:
f.write('Hello World')python append to file
with open(filename, "a+") as f:
f.write('Hello World')python write error to file
logf = open("download.log", "w")
for download in download_list:
try:
# code to process download here
except Exception as e: # most generic exception you can catch
logf.write("Failed to download {0}: {1}n".format(str(download), str(e)))
# optional: delete local version of failed download
finally:
# optional clean up code
passpython write into file at position
mystring = 'some string'
pos = 10
with open('/path/to/file.txt', 'r+') as f:
contents = f.read()
contents = contents[:pos] + mystring + contents[pos + 1:]
f.seek(0)
f.truncate()
f.write(contents)Copyright © 2021 Codeinu
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