Python - C Compiler

import click

@click.command()
@click.argument('brainf_ck',type=click.File('r'))
@click.option('-o', nargs=1, type=click.File('w'))

def CCompiler(brainf_ck, o):

    bfck_dict = {
        ">": "\t++ptr;\n",
        "<": "\t--ptr;\n",
        "+": "\t++(*ptr);\n",
        "-": "\t--(*ptr);\n",
        ".": """\tprintf("%c",(*ptr));\n""",
        ",": """\tscanf("%c",ptr);\n""",
        "[": """\twhile(*ptr) {\n\t""",
        "]": "\t\n}\n",
    }

    CInit = """#include <stdio.h>
#include <stdlib.h>

int main(void) {
    char *tape = malloc(sizeof(char)*40000);
    char *ptr = &tape[0];
"""

    source = brainf_ck.read()
    for data in source:
        if data in bfck_dict:
            CInit = CInit + bfck_dict[data]

    CInit = CInit + """\tprintf("\\n");\n\treturn 0;\n}"""

    o.write(CInit)
    o.flush()

if __name__ == "__main__":
    op = CCompiler()