Obviously the above method is better (directly convert to integer). Using float () function: We first convert to float, then convert float to integer. For more possibilities see the format character table, and see the byte order, size, and alignment table for options when the output is more than a single byte. Using int () function: Syntax : int (string) Example: Output: As a side note, to convert to float, we can use float () in python: Example: Output: 2. For a 4-byte integer, that would be i for signed numbers or I for unsigned numbers. There's a format parameter fmt that determines which conversion it should perform. Share Improve this answer Follow edited at 22:41 wjandrea 27. str (), or repr (x) if x doesn't have a str () method. The conversion from a type to bytes is done with struct.pack. 14 Answers Sorted by: 2326 > str (42) '42' > int ('42') 42 Links to the documentation: int () str () str (x) converts any object x to a string by calling x. The struct module was specifically provided for converting between various types and their binary representation as a sequence of bytes. If you want to convert 10 to b'10' use the answer above, but if you want to convert 10 to b'\x0a\x00\x00\x00' then keep reading. But since people keep coming here trying to get the answer to a different question, I'll answer that question too. This function can take any Python data type as its parameter and return the corresponding integer value, as long as it is definable. It's unnecessary work, but it's harmless and is completely compatible with Python 3.Ībove is the answer to the question that was actually asked, which was to produce a string of ASCII bytes in human-readable form. Use the int () Function to Convert a String to an Integer in Python The built-in int () function in Python converts a string to its corresponding integer value. In Python 2 str(n) already produces bytes the encode will do a double conversion as this string is implicitly converted to Unicode and back again to bytes. If you don't supply an encoding parameter 'ascii' is used, which will always be good enough for numeric digits. The function name/argument order is unimportant. I want some function int2base (num, base), such that: int (int2base (x, b), b) x. I want to perform the inverse: creation of a string from an integer, i.e. To convert a string to a sequence of bytes in either Python 2 or Python 3, you use the string's encode method. Python allows easy creation of an integer from a string of a given base via.
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