PythonRef_Bytes_Unicode_and_Strings.ipynb

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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# writing python 2 /3 compatible byte to string converters\n",
    "\n",
    "[python-future on strings and bytes](http://python-future.org/compatible_idioms.html#strings-and-bytes)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
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    {
     "data": {
      "text/plain": [
       "'3.5.2 |Anaconda 4.1.1 (64-bit)| (default, Jul  5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)]'"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import sys\n",
    "sys.version"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "---"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "b'ABCD�'\n"
     ]
    }
   ],
   "source": [
    "from builtins import bytes, chr\n",
    "bytes_string = bytes(b'ABCD\\xf9')\n",
    "print(bytes_string)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {
    "collapsed": true
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   "outputs": [],
   "source": [
    "from builtins import bytes, chr\n",
    "def convertBytesToString(bytes_string):\n",
    "    \"\"\"\n",
    "    Parameters\n",
    "    ----------\n",
    "    bytes_string: bytes\n",
    "    \n",
    "    Returns\n",
    "    -------\n",
    "    converted: str\n",
    "    \n",
    "    \"\"\"\n",
    "    convert = \"\".join([chr(ints) for ints in bytes_string])\n",
    "\n",
    "    return convert"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": false
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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<type 'unicode'>\n",
      "is basestring: True\n",
      "ABCDù\n"
     ]
    }
   ],
   "source": [
    "from past.builtins import basestring \n",
    "bytes_str = bytes(b'ABCD\\xf9')\n",
    "converted = convertBytesToString(bytes_str)\n",
    "print(type(converted))\n",
    "print \"is basestring:\", isinstance(converted, basestring)\n",
    "print(converted)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "---"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'3.5.2 |Anaconda 4.1.1 (64-bit)| (default, Jul  5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)]'"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import sys\n",
    "sys.version"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "b'ABCD\\xf9'\n"
     ]
    }
   ],
   "source": [
    "from builtins import bytes, chr\n",
    "bytes_string = bytes(b'ABCD\\xf9')\n",
    "print(bytes_string)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from builtins import bytes, chr\n",
    "def convertBytesToString(bytes_string):\n",
    "    \"\"\"\n",
    "    Parameters\n",
    "    ----------\n",
    "    bytes_string: bytes\n",
    "    \n",
    "    Returns\n",
    "    -------\n",
    "    converted: str\n",
    "    \n",
    "    \"\"\"\n",
    "    convert = \"\".join([chr(ints) for ints in bytes_string])\n",
    "    return convert"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class 'str'>\n",
      "is basestring: True\n",
      "ABCDù\n"
     ]
    }
   ],
   "source": [
    "from past.builtins import basestring\n",
    "\n",
    "bytes_str = bytes(b'ABCD\\xf9')\n",
    "converted = convertBytesToString(bytes_str)\n",
    "print(type(converted))\n",
    "print(\"is basestring:\", isinstance(converted, basestring))\n",
    "print(converted)"
   ]
  }
 ],
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