Human: Python code to compile(pattern [, flags]). Assistant: 
Here is a Python code to compile(pattern [, flags])

import re

def compile(pattern, flags=0):
  """Compiles a pattern."""
  return re.compile(pattern, flags)

# Enter the pattern
pattern = "([a-z]+)"

# Enter the flags
flags = 0

# Calling the function
regex = compile(pattern, flags)

# Printing the compiled pattern
print(regex)

#Example Output
# re.compile('([a-z]+)')

#Remember to inspect code for bugs.