removing dependence on iopath

.circleci/unittest/linux/scripts/environment.yml

@@ -8,7 +8,6 @@ dependencies:
     - dataclasses
     - nltk
     - requests
-    - iopath
     - revtok
     - pytest
     - pytest-cov

.circleci/unittest/windows/scripts/environment.yml

@@ -3,13 +3,11 @@ channels:
 dependencies:
   - flake8>=3.7.9
   - codecov
-  - pywin32
   - pip
   - pip:
     - dataclasses
     - nltk
     - requests
-    - iopath
     - revtok
     - pytest
     - pytest-cov

docs/requirements.txt

@@ -1,3 +1,2 @@
 sphinx==2.4.4
-iopath
 -e git+git://github.com/pytorch/pytorch_sphinx_theme.git#egg=pytorch_sphinx_theme 

packaging/pkg_helpers.bash

@@ -180,7 +180,6 @@ setup_pip_pytorch_version() {
 # You MUST have populated PYTORCH_VERSION_SUFFIX before hand.
 setup_conda_pytorch_constraint() {
   CONDA_CHANNEL_FLAGS=${CONDA_CHANNEL_FLAGS:-}
-  CONDA_CHANNEL_FLAGS="${CONDA_CHANNEL_FLAGS} -c iopath"
   if [[ -z "$PYTORCH_VERSION" ]]; then
     export CONDA_CHANNEL_FLAGS="${CONDA_CHANNEL_FLAGS} -c pytorch-nightly"
     export PYTORCH_VERSION="$(conda search --json 'pytorch[channel=pytorch-nightly]' | python -c "import sys, json, re; print(re.sub(r'\\+.*$', '', json.load(sys.stdin)['pytorch'][-1]['version']))")"

packaging/torchtext/meta.yaml

@@ -20,7 +20,6 @@ requirements:
   run:
     - python
     - requests
-    - iopath
     - tqdm
     {{ environ.get('CONDA_PYTORCH_CONSTRAINT') }}
 

requirements.txt

@@ -3,7 +3,6 @@ tqdm
 
 # Downloading data and other files
 requests
-iopath
 
 # Optional NLP tools
 nltk

torchtext/_download_hooks.py

@@ -1,18 +1,6 @@
-from typing import List, Optional, Union, IO, Dict, Any
 import requests
-import os
-import logging
-import uuid
 import re
-import shutil
 from tqdm import tqdm
-from iopath.common.file_io import (
-    PathHandler,
-    PathManager,
-    get_cache_dir,
-    file_lock,
-    HTTPURLHandler,
-)
 
 
 def _stream_response(r, chunk_size=16 * 1024):
@@ -54,118 +42,16 @@ def _get_response_from_google_drive(url):
     return response, filename
 
 
-class GoogleDrivePathHandler(PathHandler):
-    """
-    Download URLs and cache them to disk.
-    """
-
-    MAX_FILENAME_LEN = 250
-
-    def __init__(self) -> None:
-        self.cache_map: Dict[str, str] = {}
-
-    def _get_supported_prefixes(self) -> List[str]:
-        return ["https://drive.google.com"]
-
-    def _get_local_path(
-        self,
-        path: str,
-        force: bool = False,
-        cache_dir: Optional[str] = None,
-        **kwargs: Any,
-    ) -> str:
-        """
-        This implementation downloads the remote resource from google drive and caches it locally.
-        The resource will only be downloaded if not previously requested.
-        """
-        self._check_kwargs(kwargs)
-        if (
-            force
-            or path not in self.cache_map
-            or not os.path.exists(self.cache_map[path])
-        ):
-            logger = logging.getLogger(__name__)
-            dirname = get_cache_dir(cache_dir)
-
-            response, filename = _get_response_from_google_drive(path)
-            if len(filename) > self.MAX_FILENAME_LEN:
-                filename = filename[:100] + "_" + uuid.uuid4().hex
-
-            cached = os.path.join(dirname, filename)
-            with file_lock(cached):
-                if not os.path.isfile(cached):
-                    logger.info("Downloading {} ...".format(path))
-                    with open(cached, 'wb') as f:
-                        for data in _stream_response(response):
-                            f.write(data)
-            logger.info("URL {} cached in {}".format(path, cached))
-            self.cache_map[path] = cached
-        return self.cache_map[path]
-
-    def _open(
-        self, path: str, mode: str = "r", buffering: int = -1, **kwargs: Any
-    ) -> Union[IO[str], IO[bytes]]:
-        """
-        Open a google drive path. The resource is first downloaded and cached
-        locally.
-        Args:
-            path (str): A URI supported by this PathHandler
-            mode (str): Specifies the mode in which the file is opened. It defaults
-                to 'r'.
-            buffering (int): Not used for this PathHandler.
-        Returns:
-            file: a file-like object.
-        """
-        self._check_kwargs(kwargs)
-        assert mode in ("r", "rb"), "{} does not support open with {} mode".format(
-            self.__class__.__name__, mode
-        )
-        assert (
-            buffering == -1
-        ), f"{self.__class__.__name__} does not support the `buffering` argument"
-        local_path = self._get_local_path(path, force=False)
-        return open(local_path, mode)
-
-
-class CombinedInternalPathhandler(PathHandler):
-    def __init__(self):
-        path_manager = PathManager()
-        path_manager.register_handler(HTTPURLHandler())
-        path_manager.register_handler(GoogleDrivePathHandler())
-        self.path_manager = path_manager
-
-    def _get_supported_prefixes(self) -> List[str]:
-        return ["https://", "http://"]
-
-    def _get_local_path(
-        self,
-        path: str,
-        force: bool = False,
-        cache_dir: Optional[str] = None,
-        **kwargs: Any,
-    ) -> str:
-
-        destination = kwargs["destination"]
-
-        local_path = self.path_manager.get_local_path(path, force)
-
-        shutil.move(local_path, destination)
-
-        return destination
+class DownloadManager:
+    def get_local_path(self, url, destination):
+        if 'drive.google.com' not in url:
+            response = requests.get(url, headers={'User-Agent': 'Mozilla/5.0'}, stream=True)
+        else:
+            response, filename = _get_response_from_google_drive(url)
 
-    def _open(
-        self, path: str, mode: str = "r", buffering: int = -1, **kwargs: Any
-    ) -> Union[IO[str], IO[bytes]]:
-        self._check_kwargs(kwargs)
-        assert mode in ("r", "rb"), "{} does not support open with {} mode".format(
-            self.__class__.__name__, mode
-        )
-        assert (
-            buffering == -1
-        ), f"{self.__class__.__name__} does not support the `buffering` argument"
-        local_path = self._get_local_path(path, force=False)
-        return open(local_path, mode)
+        with open(destination, 'wb') as f:
+            for chunk in _stream_response(response):
+                f.write(chunk)
 
 
-_DATASET_DOWNLOAD_MANAGER = PathManager()
-_DATASET_DOWNLOAD_MANAGER.register_handler(CombinedInternalPathhandler())
+_DATASET_DOWNLOAD_MANAGER = DownloadManager()