the regular expression is not working. please find the below details.

```
cpu_pattern = re.compile('.*CPU.*(usr|user).*nice.*sys.*')

part = b'11:40:24 AM     CPU      %usr     %nice      %sys   %iowait    %steal      %irq     %soft    %guest     %idle\n11:40:25 AM     all      0.00      0.00      0.08      0.00      0.00      0.00      0.00      0.00     99.92'

```

**IF condition:**

```
if cpu_pattern.search(part): if cpu_usage == '': cpu_usage == part

```

**Error:**

```
TypeError('cannot use a string pattern on a bytes-like object')

```