Description: This is a simple typo: instead of passing ["xdg-open", file_name] as the args, you’re passing ["xdg-open"]` as the args and file_name as the bufsize. – abarnert Jul 26 '18 at 0:36
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Description: bufsize, if given, has the same meaning as the corresponding argument to the built-in open() function: 0 means unbuffered, 1 means line buffered, any other positive value means use a buffer of (approximately) that size. A negative bufsize means to use the system default, which usually means fully buffered. The default value for bufsize is 0 ...
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Description: Description. Python method popen() opens a pipe to or from command.The return value is an open file object connected to the pipe, which can be read or written depending on whether mode is 'r' (default) or 'w'.The bufsize argument has the same meaning as in open() function.. Syntax. Following is the syntax for popen() method −. os.popen(command[, mode[, bufsize]])
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Description: shutil.COPY_BUFSIZE is 16KiB on non-Windows platform. But it seems bit small for performance. As this article, 128KiB is the best performance on common system.
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Description: Changed in version 3.3.1: bufsize now defaults to -1 to enable buffering by default to match the behavior that most code expects. In versions prior to Python 3.2.4 and 3.3.1 it incorrectly defaulted to 0 which was unbuffered and allowed short reads. This was unintentional and did not match the behavior of Python 2 as most code expected.
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Description: Method Signature/Syntax: socket.recvfrom(bufsize[, flags]) Parameters: bufsize - The number of bytes to be read from the UDP socket.. flags - This is an optional parameter. As supported by the operating system. Multiple values combined together using bitwise OR.
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Description: The subprocess module in Python 3 uses io.open(file_descriptor, mode, bufsize) to create its Popen stdout, stderr and stdin file objects. In Python 2, it used the old os.fdopen which created an old-style python 2 file object that simply wraps libc's FILE* interface.
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Description: The maximum amount of data to be received at once is specified by bufsize It means that a single call can not receive more than 4096 bytes at a time and you need to make a loop to read more. It may look strange, but the socket module is a low level module and its main purpose is to make the C socket api available to python programs.
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Description: The subprocess module enables you to start new applications from your Python program. How cool is that? Related Course: Python Programming Bootcamp: Go from zero to hero. Start a process in Python: You can start a process in Python using the Popen function call. The program below starts the unix program ‘cat’ and the second parameter is the ...
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