Utilities

def dump_response(response, request_prefix=b'< ', response_prefix=b'> ', data_array=None):
    """
    Dump HTTP response details for debugging.
    
    Parameters:
    - response: Response object to dump
    - request_prefix: bytes, prefix for request lines (default: b'< ')
    - response_prefix: bytes, prefix for response lines (default: b'> ')
    - data_array: bytearray, optional array to append dump data
    
    Returns:
    bytes: formatted dump of response
    """

def dump_all(response, request_prefix=b'< ', response_prefix=b'> '):
    """
    Dump both request and response details.
    
    Parameters:
    - response: Response object to dump
    - request_prefix: bytes, prefix for request lines (default: b'< ')
    - response_prefix: bytes, prefix for response lines (default: b'> ')
    
    Returns:
    bytes: formatted dump of request and response
    """

class PrefixSettings:
    """
    Settings for customizing dump output prefixes.
    
    Parameters:
    - request: bytes, prefix for request lines
    - response: bytes, prefix for response lines
    """
    def __init__(self, request, response): ...

import requests
from requests_toolbelt.utils import dump_response, dump_all

# Basic response debugging
response = requests.get('https://httpbin.org/get?param=value')
print(dump_response(response).decode('utf-8'))

# Debug both request and response
response = requests.post(
    'https://httpbin.org/post',
    json={'key': 'value'},
    headers={'Custom-Header': 'test'}
)
print(dump_all(response).decode('utf-8'))

# Custom prefixes for better readability
response = requests.get('https://httpbin.org/headers')
debug_output = dump_all(
    response,
    request_prefix=b'REQUEST: ',
    response_prefix=b'RESPONSE: '
)
print(debug_output.decode('utf-8'))

# Save debug output to file
response = requests.get('https://api.example.com/data')
with open('debug_output.txt', 'wb') as f:
    f.write(dump_all(response))

# Append to existing data
data_buffer = bytearray()
response1 = requests.get('https://httpbin.org/get')
response2 = requests.post('https://httpbin.org/post', data={'test': 'data'})

dump_response(response1, data_array=data_buffer)
dump_response(response2, data_array=data_buffer)

with open('combined_debug.txt', 'wb') as f:
    f.write(data_buffer)

def user_agent(name, version, extras=None):
    """
    Create internet-friendly user-agent string.
    
    Parameters:
    - name: str, application name (e.g., 'my-scraper')
    - version: str, application version (e.g., '1.0.0')
    - extras: list, additional components as (name, version) tuples
    
    Returns:
    str: formatted user-agent string
    """

class UserAgentBuilder:
    """
    Builder class for constructing user-agent strings.
    
    Parameters:
    - name: str, application name
    - version: str, application version
    """
    def __init__(self, name, version): ...
    
    def include_extras(self, extras):
        """
        Add extra components to user-agent.
        
        Parameters:
        - extras: list of (name, version) tuples
        
        Returns:
        UserAgentBuilder: self for chaining
        """
    
    def include_implementation(self):
        """
        Include Python implementation details.
        
        Returns:
        UserAgentBuilder: self for chaining
        """
    
    def include_system(self):
        """
        Include system/platform information.
        
        Returns:
        UserAgentBuilder: self for chaining
        """
    
    def build(self):
        """
        Build the final user-agent string.
        
        Returns:
        str: complete user-agent string
        """

import requests
from requests_toolbelt.utils import user_agent
from requests_toolbelt.utils.user_agent import UserAgentBuilder

# Simple user-agent
ua = user_agent('my-app', '2.1.0')
print(ua)  # Output: my-app/2.1.0 CPython/3.9.0 Linux/5.4.0

# User-agent with extras
extras = [('requests', '2.28.0'), ('urllib3', '1.26.0')]
ua = user_agent('data-collector', '1.5.2', extras)
print(ua)

# Using builder for custom control
builder = UserAgentBuilder('web-scraper', '3.0.0')
ua = builder.include_extras([
    ('beautifulsoup4', '4.11.1'),
    ('lxml', '4.9.1')
]).include_implementation().include_system().build()

# Use with requests
session = requests.Session()
session.headers['User-Agent'] = user_agent('my-client', '1.0')

response = session.get('https://httpbin.org/user-agent')
print(response.json())

# Different user-agents for different services
github_ua = user_agent('github-client', '2.0', [('requests', '2.28.0')])
twitter_ua = user_agent('twitter-bot', '1.5', [('oauth', '1.1')])

github_session = requests.Session()
github_session.headers['User-Agent'] = github_ua

twitter_session = requests.Session()
twitter_session.headers['User-Agent'] = twitter_ua

def urlencode(query, doseq=False, safe='', encoding=None, errors=None, quote_via=quote_plus):
    """
    Enhanced URL encoding with improved list handling.
    
    Parameters:
    - query: dict or list of tuples, data to encode
    - doseq: bool, handle sequences in values
    - safe: str, characters not to encode
    - encoding: str, character encoding
    - errors: str, error handling scheme
    - quote_via: callable, quoting function
    
    Returns:
    str: URL-encoded string
    """

from requests_toolbelt.utils.formdata import urlencode
import requests

# Enhanced list handling
data = {
    'tags': ['python', 'http', 'requests'],
    'categories': ['web', 'api'],  
    'user': 'john_doe'
}

# Standard encoding - lists become multiple parameters
encoded = urlencode(data, doseq=True)
print(encoded)  # tags=python&tags=http&tags=requests&categories=web&categories=api&user=john_doe

# Use with requests
response = requests.get('https://api.example.com/search', params=encoded)

# Complex data structures
complex_data = {
    'filters': {
        'status': ['active', 'pending'],
        'type': 'user'
    },
    'sort': 'created_date',
    'limit': 50
}

# Flatten and encode complex structures
flat_data = []
for key, value in complex_data.items():
    if isinstance(value, dict):
        for subkey, subvalue in value.items():
            full_key = f"{key}[{subkey}]"
            if isinstance(subvalue, list):
                for item in subvalue:
                    flat_data.append((full_key, item))
            else:
                flat_data.append((full_key, subvalue))
    else:
        flat_data.append((key, value))

encoded = urlencode(flat_data)
print(encoded)

def get_encodings_from_content(content):
    """
    Extract character encodings from HTML content.
    
    Parameters:
    - content: str, HTML content to analyze
    
    Returns:
    list: detected encodings
    
    Note: Deprecated - use charset-normalizer or chardet instead
    """

def get_unicode_from_response(response):
    """
    Extract unicode text from response.
    
    Parameters:
    - response: Response object
    
    Returns:
    str: decoded response text
    
    Note: Deprecated - use response.text instead
    """

import requests
from requests_toolbelt.utils import dump_all, user_agent

def debug_api_call(url, method='GET', **kwargs):
    """Helper function for debugging API calls."""
    
    # Setup session with debugging
    session = requests.Session()
    session.headers['User-Agent'] = user_agent('debug-client', '1.0')
    
    # Make request
    response = session.request(method, url, **kwargs)
    
    # Debug output
    print("=" * 50)
    print(f"DEBUG: {method} {url}")
    print("=" * 50)
    print(dump_all(response).decode('utf-8', errors='replace'))
    print("=" * 50)
    
    return response

# Usage
response = debug_api_call(
    'https://httpbin.org/post',
    method='POST',
    json={'test': 'data'},
    headers={'Custom-Header': 'debug-value'}
)

# Automated debugging for multiple requests
def debug_request_batch(requests_list):
    """Debug multiple requests and save output."""
    
    with open('debug_batch.txt', 'w') as f:
        for i, req in enumerate(requests_list):
            f.write(f"\\n{'='*60}\\n")
            f.write(f"REQUEST {i+1}: {req['method']} {req['url']}\\n")
            f.write(f"{'='*60}\\n")
            
            response = requests.request(**req)
            debug_output = dump_all(response).decode('utf-8', errors='replace')
            f.write(debug_output)

# Usage
requests_to_debug = [
    {'method': 'GET', 'url': 'https://httpbin.org/get'},
    {'method': 'POST', 'url': 'https://httpbin.org/post', 'json': {'key': 'value'}},
    {'method': 'PUT', 'url': 'https://httpbin.org/put', 'data': 'test data'}
]

debug_request_batch(requests_to_debug)