Python Applet: Get all the contents of a binary file

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Sometimes you want to get all the content of a binary file, but do not want to open the file, read the file, close the file, these steps need to be encapsulated with a small program, complete the operations required to obtain the file content in one sentence. Here is a sample code.

The Code is as follows (get_bin_file.py ):

#! /usr/bin/env pythonimport osdef get_bin_file(filename):'''Get the all content of the binary file.input: filename - the binary file namereturn: binary string - the content of the file. '''if not os.path.isfile(filename):print("ERROR: %s is not a valid file." % (filename))return Nonef = open(filename, "rb")data = f.read()f.close()return data

Call example:

>>> import get_bin_file>>> content = get_bin_file.get_bin_file("not_exist_file")ERROR: not_exist_file is not a valid file.>>> content = get_bin_file.get_bin_file("./get_bin_file.py")>>> print (content)b'#! /usr/bin/env python\n\nimport os\n\ndef get_bin_file(filename):\n\t\'\'\'\n\tGet the all content of the binary file.\n\t\n\tinput: filename - the binary file name\n\treturn: binary string - the content of the file. \n\t\'\'\'\n\n\tif not os.path.isfile(filename):\n\t\tprint("ERROR: %s is not a valid file." % (filename))\n\t\treturn None\n\n\tf = open(filename, "rb")\n\tdata = f.read()\n\tf.close()\n\n\treturn data\n\n\n'>>> content = get_bin_file.get_bin_file("./str_split.py.png")>>> print(content)b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x01\t\x00×××××××××××××××××××××××××××××××××××××\xb5\xeb\x93\xbc2\x00\x00\x00\x00IEND\xaeB`\x82'>>>