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Changed in version 3.3: ASCII-only unicode strings are now accepted by the The binascii. a2b_uu (string)¶Convert a single line of uuencoded data back to binary and return the binary data. Lines normally contain 45 (binary) bytes, except for the last line. Line data may be followed by whitespace. binascii. b2a_uu (data, *, backtick=False)¶Convert binary data to a line of ASCII characters, the return value is the converted line, including a newline char. The length of data should be at most 45. If
backtick is true, zeros are represented by Changed in version 3.7: Added the backtick parameter. binascii. a2b_base64 (string)¶Convert a block of base64 data back to binary and return the binary data. More than one line may be passed at a time. binascii. b2a_base64 (data, *, newline=True)¶Convert binary data to a line of ASCII characters in base64 coding. The return value is the converted line, including a newline char if newline is true. The output of this function conforms to RFC 3548. Changed in version 3.6: Added the newline parameter. binascii. a2b_qp (data,
header=False)¶Convert a block of quoted-printable data back to binary and return the binary data. More than one line may be passed at a time. If the optional argument header is present and true, underscores will be decoded as spaces. binascii. b2a_qp (data, quotetabs=False, istext=True, header=False)¶Convert binary data to a line(s) of ASCII characters in quoted-printable encoding. The return value is the converted line(s). If the optional argument quotetabs is present and true, all tabs and spaces will be encoded. If the optional argument istext is present and true, newlines are not encoded but trailing whitespace will be encoded. If the optional argument header is present and true, spaces will be encoded as underscores per RFC 1522. If the optional argument header is present and false, newline characters will be encoded as well; otherwise linefeed conversion might corrupt the binary data stream. binascii. a2b_hqx (string)¶Convert binhex4 formatted ASCII data to binary, without doing RLE-decompression. The string should contain a complete number of binary bytes, or (in case of the last portion of the binhex4 data) have the remaining bits zero. Deprecated since version 3.9. binascii. rledecode_hqx (data)¶Perform RLE-decompression on the data, as per the binhex4 standard. The algorithm uses Changed in version 3.2: Accept only bytestring or bytearray objects as input. Deprecated since version 3.9. binascii. rlecode_hqx (data)¶Perform binhex4 style RLE-compression on data and return the result. Deprecated since version 3.9. binascii. b2a_hqx (data)¶Perform hexbin4 binary-to-ASCII translation and return the resulting string. The argument should already be RLE-coded, and have a length divisible by 3 (except possibly the last fragment). Deprecated since version 3.9. binascii. crc_hqx (data, value)¶Compute a 16-bit CRC value of data, starting with value as the initial CRC, and return the result. This uses the CRC-CCITT polynomial x16 + x12 + x5 + 1, often represented as 0x1021. This CRC is used in the binhex4 format. binascii. crc32 (data[, value])¶Compute CRC-32, the unsigned 32-bit checksum of data, starting with an initial CRC of value. The default initial CRC is zero. The algorithm is consistent with the ZIP file checksum. Since the algorithm is designed for use as a checksum algorithm, it is not suitable for use as a general hash algorithm. Use as follows: print(binascii.crc32(b"hello world")) # Or, in two pieces: crc = binascii.crc32(b"hello") crc = binascii.crc32(b" world", crc) print('crc32 = {:#010x}'.format(crc)) Changed in version 3.0: The result is always unsigned. To generate the same numeric value when using Python 2 or earlier, use binascii. b2a_hex (data[, sep[,
bytes_per_sep=1]])¶ binascii. hexlify (data[, sep[, bytes_per_sep=1]])¶Return the hexadecimal representation of the binary data. Every byte of data is converted into the corresponding 2-digit hex representation. The returned bytes object is therefore twice as long as the length of data. Similar functionality (but returning a text string) is also conveniently accessible using the If sep is specified, it must be a single character str or bytes object. It will be inserted in the output after every bytes_per_sep input bytes. Separator placement is counted from the right end of the output by default, if you wish to count from the left, supply a negative bytes_per_sep value. >>> import binascii >>> binascii.b2a_hex(b'\xb9\x01\xef') b'b901ef' >>> binascii.hexlify(b'\xb9\x01\xef', '-') b'b9-01-ef' >>> binascii.b2a_hex(b'\xb9\x01\xef', b'_', 2) b'b9_01ef' >>> binascii.b2a_hex(b'\xb9\x01\xef', b' ', -2) b'b901 ef' Changed in version 3.8: The sep and bytes_per_sep parameters were added. binascii. a2b_hex (hexstr)¶ binascii. unhexlify (hexstr)¶Return the binary data
represented by the hexadecimal string hexstr. This function is the inverse of Similar
functionality (accepting only text string arguments, but more liberal towards whitespace) is also accessible using the binascii. Error ¶Exception raised on errors. These are usually programming errors. exceptionbinascii. Incomplete ¶Exception raised on incomplete data. These are usually not programming errors, but may be handled by reading a little more data and trying again. See also Modulebase64 Support for RFC compliant base64-style encoding in base 16, 32, 64, and 85. Modulebinhex Support for the binhex format used on the Macintosh. Moduleuu Support for UU encoding used on Unix. Modulequopri Support for quoted-printable encoding used in MIME email messages. How do you convert a text file to binary in Python?“how to convert text file to binary file in python” Code Answer. file = open("sample.bin", "wb"). COPYfile. write(b"This binary string will be written to sample.bin"). COPYfile. close(). How do you convert numbers into binary?To convert integer to binary, start with the integer in question and divide it by 2 keeping notice of the quotient and the remainder. Continue dividing the quotient by 2 until you get a quotient of zero. Then just write out the remainders in the reverse order.
How do you convert int to binary in Python?To convert int to binary in Python, use the bin() method. The bin() is a built-in Python method that converts a decimal to a binary data type. The bin() function accepts a number as an argument and returns its equivalent binary string prefixed with “0b”.
How do you convert data to numbers in Python?To convert, or cast, a string to an integer in Python, you use the int() built-in function. The function takes in as a parameter the initial string you want to convert, and returns the integer equivalent of the value you passed. The general syntax looks something like this: int("str") .
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