capstone disassembler python returns same instructions on every offset

I am trying to disassambe a PE file using capstone with python bindings.

import pefile
from capstone import *

exe_file = 'C:\\Users\\Philip\\file.exe'
pe = pefile.PE(exe_file)

# find text section
offset = False
for section in pe.sections:
    if section.Name == b'.text\x00\x00\x00':
        offset = section.VirtualAddress
        break

with open(exe_file, 'rb') as f:
    code = f.read()

# start disassembling text section
md = Cs(CS_ARCH_X86, CS_MODE_32)
md.detail = True
if offset:
    for i in md.disasm(code, offset):
        print('0x%x:\t%s\t%s' % (i.address, i.mnemonic, i.op_str))

But it keeps returning the same ASM instructions at every offset.

0x1000: dec ebp
0x1001: pop edx
0x1002: nop 
0x1003: add byte ptr [ebx], al
0x1005: add byte ptr [eax], al
0x1007: add byte ptr [eax + eax], al
0x100a: add byte ptr [eax], al

for i in md.disasm(code, 0x2000):
        print('0x%x:\t%s\t%s' %(i.address, i.mnemonic, i.op_str))

0x2000: dec ebp
0x2001: pop edx
0x2002: nop 
0x2003: add byte ptr [ebx], al
0x2005: add byte ptr [eax], al
0x2007: add byte ptr [eax + eax], al
0x200a: add byte ptr [eax], al

And if i keep looping il get an endless stream of the same output.

from typing import Iterable, Any, Tuple

def signal_last(it: Iterable[Any]) -> Iterable[Tuple[bool, Any]]:
    iterable = iter(it)
    ret_var = next(iterable)
    for value in iterable:
        yield False, ret_var
        ret_var = value
    yield True, ret_var

offset = 0x1000
while True:
    for last, i in signal_last(md.disasm(code, offset)):
        print('0x%x:\t%s\t%s' % (i.address, i.mnemonic, i.op_str))
        if last:
            offset = i.address + 1

0xbc113:    dec ebp
0xbc114:    pop edx
0xbc115:    nop 
0xbc116:    add byte ptr [ebx], al
0xbc118:    add byte ptr [eax], al
0xbc11a:    add byte ptr [eax + eax], al
0xbc11d:    add byte ptr [eax], al
0xbc11e:    dec ebp
0xbc11f:    pop edx
0xbc120:    nop 
0xbc121:    add byte ptr [ebx], al
0xbc123:    add byte ptr [eax], al
0xbc125:    add byte ptr [eax + eax], al
0xbc128:    add byte ptr [eax], al
0xbc129:    dec ebp
0xbc12a:    pop edx
0xbc12b:    nop 
0xbc12c:    add byte ptr [ebx], al
0xbc12e:    add byte ptr [eax], al
0xbc130:    add byte ptr [eax + eax], al
0xbc133:    add byte ptr [eax], al
0xbc134:    dec ebp
0xbc135:    pop edx
0xbc136:    nop 
0xbc137:    add byte ptr [ebx], al
0xbc139:    add byte ptr [eax], al
0xbc13b:    add byte ptr [eax + eax], al
0xbc13e:    add byte ptr [eax], al
0xbc13f:    dec ebp
0xbc140:    pop edx
0xbc141:    nop 
0xbc142:    add byte ptr [ebx], al
0xbc144:    add byte ptr [eax], al
0xbc146:    add byte ptr [eax + eax], al
0xbc149:    add byte ptr [eax], al
0xbc14a:    dec ebp
0xbc14b:    pop edx
0xbc14c:    nop 
0xbc14d:    add byte ptr [ebx], al
0xbc14f:    add byte ptr [eax], al
0xbc151:    add byte ptr [eax + eax], al
0xbc154:    add byte ptr [eax], al
0xbc155:    dec ebp
0xbc156:    pop edx
0xbc157:    nop 
0xbc158:    add byte ptr [ebx], al
0xbc15a:    add byte ptr [eax], al
0xbc15c:    add byte ptr [eax + eax], al
0xbc15f:    add byte ptr [eax], al
0xbc160:    dec ebp
0xbc161:    pop edx
0xbc162:    nop 
0xbc163:    add byte ptr [ebx], al
0xbc165:    add byte ptr [eax], al
0xbc167:    add byte ptr [eax + eax], al
0xbc16a:    add byte ptr [eax], al
0xbc16b:    dec ebp
0xbc16c:    pop edx
0xbc16d:    nop 
0xbc16e:    add byte ptr [ebx], al
0xbc170:    add byte ptr [eax], al
0xbc172:    add byte ptr [eax + eax], al
0xbc175:    add byte ptr [eax], al

Does anyone know what i am doing wrong? Because i don't think this is how Capstone is supposed to work.

Disasm will disassemble from start of code. You should pass raw data corresponding to code section, not the beginning of PE file, where PE headers reside:

import pefile
from capstone import *

exe_file = 'C:\\Users\\Philip\\file.exe'
pe = pefile.PE(exe_file)

# find text section
offset = False
for section in pe.sections:
    if section.Name == b'.text\x00\x00\x00':
        offset = section.VirtualAddress
        codePtr = section.PointerToRawData
        codeEndPtr = codePtr+section.SizeOfRawData
        break

code = pe.get_memory_mapped_image()[codePtr:codeEndPtr]

# start disassembling text section
md = Cs(CS_ARCH_X86, CS_MODE_32)
md.detail = True
if offset:
    for i in md.disasm(code, offset):
        print('0x%x:\t%s\t%s' % (i.address, i.mnemonic, i.op_str))