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support for binary files #8

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support for binary files #8

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e4057d8
optional support for binary files
rgalonso Apr 5, 2018
4c25450
start at end of file (original behavior)
rgalonso Apr 5, 2018
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5 changes: 3 additions & 2 deletions tail.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@

class Tail(object):
''' Represents a tail command. '''
def __init__(self, tailed_file):
def __init__(self, tailed_file, open_mode = 'r'):
''' Initiate a Tail instance.
Check for file validity, assigns callback function to standard out.

Expand All @@ -38,6 +38,7 @@ def __init__(self, tailed_file):
self.check_file_validity(tailed_file)
self.tailed_file = tailed_file
self.callback = sys.stdout.write
self.open_mode = open_mode

def follow(self, s=1):
''' Do a tail follow. If a callback function is registered it is called with every new line.
Expand All @@ -46,7 +47,7 @@ def follow(self, s=1):
Arguments:
s - Number of seconds to wait between each iteration; Defaults to 1. '''

with open(self.tailed_file) as file_:
with open(self.tailed_file, self.open_mode) as file_:
# Go to the end of file
file_.seek(0,2)
while True:
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