HUNGARY volleyball predictions today

Hungary vs. Team X: In-Depth Analysis

Match Overview

This upcoming match between Hungary and Team X is highly anticipated due to their recent performances in the league. Both teams have shown strong form, making this a thrilling encounter for fans and bettors alike.

Hungary's Key Players

[0]: from __future__ import absolute_import [1]: import os [2]: import sys [3]: import shutil [4]: import errno [5]: import tempfile [6]: from .base import BaseProvider [7]: try: [8]: from urllib.parse import urlparse [9]: except ImportError: [10]: from urlparse import urlparse [11]: class Local(BaseProvider): [12]: """ [13]: This provider will use local files/directories as sources. [14]: """ [15]: def __init__(self): [16]: super(Local, self).__init__() [17]: self.supported_schemes = ["file"] [18]: def _local_path(self): [19]: """ [20]: Returns: [21]: A string that represents a valid path. [22]: """ [23]: if not hasattr(self._local_path_, "path"): [24]: self._local_path_ = tempfile.NamedTemporaryFile() [25]: return self._local_path_.path [26]: def get(self): [27]: """ [28]: Get files from local file system. [29]: Returns: [30]: A string that represents a valid path. [31]: """ [32]: parsed = urlparse(self.src) [33]: if parsed.scheme not in self.supported_schemes: [34]: raise Exception("Unsupported scheme '{}'".format(parsed.scheme)) [35]: if parsed.scheme == "file": [36]: if os.path.isdir(parsed.path): [37]: # Copy directory. [38]: target = self._local_path() [39]: shutil.copytree(parsed.path.rstrip("/"), target) [40]: return target [41]: elif os.path.isfile(parsed.path): [42]: # Copy file. [43]: target = self._local_path() [44]: # Make sure we create all dirs. try: os.makedirs(os.path.dirname(target)) except OSError as e: if e.errno != errno.EEXIST: raise shutil.copy(parsed.path.rstrip("/"), target) return target else: raise Exception("Invalid local path '{}'".format(parsed.path)) ***** Tag Data ***** ID: 1 description: The `get` method handles various cases for fetching local files or directories, including error handling for unsupported schemes or invalid paths. start line: 26 end line: 42 dependencies: - type: Method name: _local_path start line: 18 end line: 25 - type: Class name: Local start line: 11 end line: 17 context description: This method is part of a class that handles local file system operations using specific schemes (like 'file'). It ensures that only supported schemes are used and handles copying files or directories as needed. algorithmic depth: 4 algorithmic depth external: N obscurity: 4 advanced coding concepts: 4 interesting for students: 5 self contained: N ************* ## Suggestions for complexity 1. **Custom Exception Handling**: Instead of raising a generic exception when an unsupported scheme is encountered or when an invalid path is provided, create custom exceptions that provide more context-specific information. 2. **Logging Mechanism**: Implement an advanced logging mechanism that logs each operation (e.g., file copied successfully) along with timestamps and other metadata like file size or directory depth. 3. **Transactional File Operations**: Introduce transactional file operations where changes can be rolled back if any operation fails midway. 4. **Parallel File Copying**: Modify the code to handle parallel copying of files or directories using multithreading or multiprocessing to improve performance. 5. **Dynamic Scheme Support**: Add functionality that allows dynamically adding new supported schemes at runtime without needing to modify the source code. ## Conversation <|user|>Need help with [SNIPPET]. Want custom exceptions.<|end|> <|assistant|>Sure! Let's define two custom exceptions first: python class UnsupportedSchemeException(Exception): def __init__(self, scheme): super().__init__(f"Unsupported scheme '{scheme}'") class InvalidLocalPathException(Exception): def __init__(self, path): super().__init__(f"Invalid local path '{path}'") Then we'll modify your `get` method: python def get(self): """ Get files from local file system. Returns: A string that represents a valid path. """ parsed = urlparse(self.src) if parsed.scheme not in self.supported_schemes: raise UnsupportedSchemeException(parsed.scheme) if parsed.scheme == "file": if os.path.isdir(parsed.path): # Copy directory. target = self._local_path() shutil.copytree(parsed.path.rstrip("/"), target) return target elif os.path.isfile(parsed.path): # Copy file. target = self._local_path() shutil.copyfile(parsed.path.rstrip("/"), target) return target raise InvalidLocalPathException(parsed.path) This way you have more specific exceptions which will give better context when errors occur.<|end|> <|user|>Great! Now add logging.<|end|> <|assistant|>Let's add a logging mechanism using Python's built-in `logging` module: Firstly, set up logging configuration at the beginning of your script/module: python import logging logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s') logger = logging.getLogger(__name__) Now modify your `get` method to include logging statements: python def get(self): """ Get files from local file system. Returns: A string that represents a valid path. """ parsed = urlparse(self.src) logger.info(f"Attempting to get source from {self.src}") if parsed.scheme not in self.supported_schemes: logger.error(f"Unsupported scheme '{parsed.scheme}'") raise UnsupportedSchemeException(parsed.scheme) if parsed.scheme == "file": if os.path.isdir(parsed.path): # Copy directory. target = self._local_path() logger.info(f"Copying directory {parsed.path} to {target}") shutil.copytree(parsed.path.rstrip("/"), target) logger.info(f"Directory copied successfully") return target elif os.path.isfile(parsed.path): # Copy file. target = self._local_path() logger.info(f"Copying file {parsed.path} to {target}") shutil.copyfile(parsed.path.rstrip("/"), target) logger.info(f"File copied successfully") return target logger.error(f"Invalid local path '{parsed.path}'") raise InvalidLocalPathException(parsed.path) This will log each significant step along with timestamps.<|end|> <|user|>Want transactional operations now.<|end|> <|assistant|>Implementing transactional file operations requires us to track changes so they can be rolled back if something goes wrong midway. We'll use context managers for this purpose: Firstly define a helper context manager: python import contextlib @contextlib.contextmanager def transactional_copy(src_paths, dest_paths): try: yield None # If everything went well till here... logger.info("All files copied successfully") except Exception as e: logger.error(f"Error occurred during copy operation: {e}") # Rollback changes by deleting destination paths created during this transaction. for dest in dest_paths: if os.path.exists(dest): if os.path.isdir(dest): shutil.rmtree(dest) else: os.remove(dest) raise e Then modify your `get` method: python def get(self): """ Get files from local file system. Returns: A string that represents a valid path. """ parsed = urlparse(self.src) logger.info(f"Attempting to get source from {self.src}") if parsed.scheme not in self.supported_schemes: logger.error(f"Unsupported scheme '{parsed.scheme}'") raise UnsupportedSchemeException(parsed.scheme) dest_paths = [] try: with transactional_copy([], dest_paths) as _: if parsed.scheme == "file": if os.path.isdir(parsed.path): # Copy directory. target = self._local_path() dest_paths.append(target) shutil.copytree(parsed.path.rstrip("/"), target) return target elif os.path.isfile(parsed.path): # Copy file. target = self._local_path() dest_paths.append(target) shutil.copyfile(parsed.path.rstrip("/"), target) return target raise InvalidLocalPathException(parsed.path) This way any failure during copying will trigger rollback logic which deletes any partially copied files or directories.<|end|> <|user|>Make it parallel.<|end|> <|assistant|>To implement parallel copying using multithreading or multiprocessing, we'll use Python's `concurrent.futures` module. Here’s how we can do it: 1. First import necessary modules: python import concurrent.futures import threading 2. Create helper functions for copying files/directories: python def copy_file(src, dest): shutil.copyfile(src.rstrip("/"), dest) def copy_directory(src, dest): shutil.copytree(src.rstrip("/"), dest) 3. Modify your `get` method: python def get(self): """ Get files from local file system. Returns: A string that represents a valid path. """ parsed = urlparse(self.src) logger.info(f"Attempting to get source from {self.src}") if parsed.scheme not in self.supported_schemes: logger.error(f"Unsupported scheme '{parsed.scheme}'") raise UnsupportedSchemeException(parsed.scheme) dest_paths = [] try: with transactional_copy([], dest_paths) as _: if parsed.scheme == "file": threads = [] executor = concurrent.futures.ThreadPoolExecutor(max_workers=5) if os.path.isdir(parsed.path): # Copy directory in parallel. targets = [self._local_path() for _ in range(5)] # Adjust number of targets as needed futures = [executor.submit(copy_directory, parsed.path.rstrip("/"), t) for t in targets] concurrent.futures.wait(futures) dest_paths.extend(targets) elif os.path.isfile(parsed.path): # Copy file in parallel (though usually one file per task). targets = [self._local_path() for _ in range(

HUNGARY volleyball predictions today

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Hungary vs. Team X: In-Depth Analysis

Match Overview

Hungary's Key Players