Count lines in python project

lines_in_project.py

import os
from collections import OrderedDict

def count_doc_lines(file_path, chars_per_line=120):
    non_blank_count = 0
    total_lines = 0
    with open(file_path) as file_handle:
        for line in file_handle:
            curr = 1
            if line.strip():
                # 120 chars per line
                curr += len(line) // chars_per_line
                non_blank_count += curr
            total_lines += curr
    #return total_lines, non_blank_count
    return non_blank_count

def count_code_lines(file_path):
    non_blank_count = 0
    total_lines = 0
    with open(file_path) as file_handle:
        for line in file_handle:
            total_lines += 1
            if line.strip():
                # 120 chars per line
                non_blank_count += 1
    #return total_lines, non_blank_count
    return non_blank_count

def count_lines_per_file_in_proj(root_dir, ignore_folders=['.eggs']):
    doc_files = {}
    code_files = {}
    root_dir = os.path.abspath(root_dir)
    for item in os.listdir(root_dir):
        item_path = os.path.join(root_dir, item)
        if os.path.isdir(item_path) and item not in ignore_folders:
            #print('Folder of interest: ' + item)
            sub_code, sub_doc = count_lines_in_proj(item_path)
            code_files.update(sub_code)
            doc_files.update(sub_doc)
        else:
            if item.endswith('.py'):
                code_files[item_path] = count_code_lines(item_path)
            elif item.endswith('.rst'):
                doc_files[item_path] = count_doc_lines(item_path)
    
    doc_files = OrderedDict(sorted(doc_files.items(), key=lambda x: x[1]))
    code_files = OrderedDict(sorted(code_files.items(), key=lambda x: x[1]))
    
    return code_files, doc_files

def count_lines_in_project(root_dir, ignore_folders=['.eggs']):
    code, docs = count_lines_per_file_in_proj(root_dir, ignore_folders=ignore_folders)
    return sum(list(code.values())), sum(list(docs.values()))