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ultralytics requirement.txt

时间: 2025-02-16 10:47:05 浏览: 121
### 查找并理解 `ultralytics` 的 `requirements.txt` 为了确保能够顺利安装 `ultralytics` 及其依赖项,建议直接访问官方仓库获取最新的 `requirements.txt` 文件。通常情况下,该文件位于项目的根目录下。 #### 获取最新版 `requirements.txt` 可以通过以下方式下载或查看: 1. **克隆整个项目库** 使用 Git 命令行工具克隆官方 GitHub 仓库: ```bash git clone https://github.com/ultralytics/ultralytics.git cd ultralytics/ cat requirements.txt ``` 2. **在线浏览** 访问 [Ultralytics GitHub](https://github.com/ultralytics/ultralytics/blob/main/requirements.txt),可以直接在网页上打开并阅读 `requirements.txt` 文件的内容。 3. **手动创建 `requirements.txt`** 如果无法立即获得完整的 `requirements.txt` 文件,则可以根据已知信息构建一个基本版本[^1]: ```plaintext numpy>=1.19.4 matplotlib>=3.3.2 opencv-python-headless>=4.5.1.48 Pillow>=7.2.0 PyYAML>=5.3.1 requests>=2.25.1 scipy>=1.5.4 tqdm>=4.60.0 torch>=1.7.0,<1.13 torchaudio>=0.7.0 pandas>=1.1.4 seaborn>=0.11.0 tensorboard>=2.4.1 thop>=0.0.31.post2005241907 pycocotools>=2.0.2 ``` 需要注意的是,对于特定版本号的要求应当依据实际需求调整,尤其是当遇到兼容性问题时应参照官方文档中的指导进行适当修改[^2]。
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(yolov9) C:\Users\xu>pip install ultralytics opencv-python albumentations tqdm pandas Collecting ultralytics Downloading ultralytics-8.3.169-py3-none-any.whl.metadata (37 kB) Collecting opencv-python Downloading opencv_python-4.12.0.88-cp37-abi3-win_amd64.whl.metadata (19 kB) Collecting albumentations Downloading albumentations-1.4.18-py3-none-any.whl.metadata (32 kB) Collecting tqdm Using cached tqdm-4.67.1-py3-none-any.whl.metadata (57 kB) Collecting pandas Using cached pandas-2.0.3-cp38-cp38-win_amd64.whl.metadata (18 kB) Requirement already satisfied: numpy>=1.23.0 in d:\rujian\pc\envs\yolov9\lib\site-packages (from ultralytics) (1.24.1) INFO: pip is looking at multiple versions of ultralytics to determine which version is compatible with other requirements. This could take a while. Collecting ultralytics Downloading ultralytics-8.3.168-py3-none-any.whl.metadata (37 kB) Using cached ultralytics-8.3.167-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.166-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.165-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.164-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.163-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.162-py3-none-any.whl.metadata (37 kB) INFO: pip is still looking at multiple versions of ultralytics to determine which version is compatible with other requirements. This could take a while. Downloading ultralytics-8.3.161-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.160-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.159-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.158-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.157-py3-none-any.whl.metadata (37 kB) INFO: This is taking longer than usual. You might need to provide the dependency resolver with stricter constraints to reduce runtime. See https://pip.pypa.io/warnings/backtracking for guidance. If you want to abort this run, press Ctrl + C. Downloading ultralytics-8.3.156-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.155-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.154-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.153-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.152-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.151-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.150-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.149-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.148-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.147-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.146-py3-none-any.whl.metadata (37 kB) Downloading ultralytics-8.3.145-py3-none-any.whl.metadata (37 kB) ERROR: Operation cancelled by user (yolov9) C:\Users\xu> (yolov9) C:\Users\xu> (yolov9) C:\Users\xu> (yolov9) C:\Users\xu> 什么意思

(yolov8) PS D:\QYH\模型\YOLOv8源代码文件> pip install -r requirements.txt Collecting certifi==2022.12.7 (from -r requirements.txt (line 2)) Using cached certifi-2022.12.7-py3-none-any.whl.metadata (2.9 kB) Collecting charset-normalizer==2.1.1 (from -r requirements.txt (line 3)) Using cached charset_normalizer-2.1.1-py3-none-any.whl.metadata (11 kB) Requirement already satisfied: colorama==0.4.6 in c:\programdata\anaconda3\envs\yolov8\lib\site-packages (from -r requirements.txt (line 4)) (0.4.6) Requirement already satisfied: contourpy>=1.2.0 in c:\programdata\anaconda3\envs\yolov8\lib\site-packages (from -r requirements.txt (line 5)) (1.3.1) Collecting cycler==0.12.1 (from -r requirements.txt (line 6)) Using cached cycler-0.12.1-py3-none-any.whl.metadata (3.8 kB) Collecting filelock==3.9.0 (from -r requirements.txt (line 7)) Using cached filelock-3.9.0-py3-none-any.whl.metadata (2.3 kB) Collecting fonttools==4.50.0 (from -r requirements.txt (line 8)) Using cached fonttools-4.50.0-py3-none-any.whl.metadata (159 kB) Requirement already satisfied: fsspec==2024.6.1 in c:\programdata\anaconda3\envs\yolov8\lib\site-packages (from -r requirements.txt (line 9)) (2024.6.1) Collecting huggingface-hub==0.23.4 (from -r requirements.txt (line 10)) Using cached huggingface_hub-0.23.4-py3-none-any.whl.metadata (12 kB) Collecting idna==3.4 (from -r requirements.txt (line 11)) Using cached idna-3.4-py3-none-any.whl.metadata (9.8 kB) Collecting Jinja2==3.1.2 (from -r requirements.txt (line 12)) Using cached Jinja2-3.1.2-py3-none-any.whl.metadata (3.5 kB) Collecting kiwisolver==1.4.5 (from -r requirements.txt (line 13)) Using cached kiwisolver-1.4.5.tar.gz (97 kB) Installing build dependencies ... done Getting requirements to build wheel ... done Preparing metadata (pyproject.toml) ... done Requirement already satisfied: MarkupSafe==2.1.3 in c:\programdata\anaconda3\envs\yolov8\lib\site-packages (from -r requirements.txt (line 14)) (2.1.3) Collecting matplotlib==3.8.3

PS D:\DAIMABIANXIE\Yolov5-master\yolov5-master (2)\yolov5-master\yolov5-master> python train.py --weights weights/yolov5s.pt --cfg models/yolov5s.yaml --data data/myvoc.yaml --epoch 50 --batch-size 12 --img 640 --device cpu --workers 0 Collecting ultralytics Downloading ultralytics-8.3.167-py3-none-any.whl (1.0 MB) |████████████████████████████████| 1.0 MB 14 kB/s Requirement already satisfied: torch>=1.8.0 in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (2.4.1) Requirement already satisfied: py-cpuinfo in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (9.0.0) Requirement already satisfied: matplotlib>=3.3.0 in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (3.3.4) Requirement already satisfied: opencv-python>=4.6.0 in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (4.12.0.88) Requirement already satisfied: requests>=2.23.0 in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (2.25.1) Requirement already satisfied: psutil in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (5.8.0) Requirement already satisfied: pandas>=1.1.4 in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (1.2.4) Requirement already satisfied: ultralytics-thop>=2.0.0 in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (2.0.14) Requirement already satisfied: scipy>=1.4.1 in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (1.10.1) Requirement already satisfied: pillow>=7.1.2 in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (8.2.0) Requirement already satisfied: numpy>=1.23.0 in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (1.24.4) Requirement already satisfied: torchvision>=0.9.0 in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (0.19.1) Requirement already satisfied: pyyaml>=5.3.1 in c:\programdata\anaconda3\lib\site-packages (from ultralytics) (5.4.1) Requirement already satisfied: tqdm>=4.64.0 in c:\users\19836\appdata\roaming\python\python38\site-packages (from ultralytics) (4.67.1) Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.3 in c:\programdata\anaconda3\lib\site-packages (from matplotlib>=3.3.0->ultralytics) (2.4.7) Requirement already satisfied: python-dateutil>=2.1 in c:\programdata\anaconda3\lib\site-packages (from matplotlib>=3.3.0->ultralytics) (2.8.1) Requirement already satisfied: cycler>=0.10 in c:\programdata\anaconda3\lib\site-packages (from matplotlib>=3.3.0->ultralytics) (0.10.0) Requirement already satisfied: kiwisolver>=1.0.1 in c:\programdata\anaconda3\lib\site-packages (from matplotlib>=3.3.0->ultralytics) (1.3.1) Requirement already satisfied: six in c:\programdata\anaconda3\lib\site-packages (from cycler>=0.10->matplotlib>=3.3.0->ultralytics) (1.15.0) Requirement already satisfied: pytz>=2017.3 in c:\programdata\anaconda3\lib\site-packages (from pandas>=1.1.4->ultralytics) (2021.1) Requirement already satisfied: chardet<5,>=3.0.2 in c:\programdata\anaconda3\lib\site-packages (from requests>=2.23.0->ultralytics) (4.0.0) Requirement already satisfied: certifi>=2017.4.17 in c:\programdata\anaconda3\lib\site-packages (from requests>=2.23.0->ultralytics) (2020.12.5) Requirement already satisfied: idna<3,>=2.5 in c:\programdata\anaconda3\lib\site-packages (from requests>=2.23.0->ultralytics) (2.10) Requirement already satisfied: urllib3<1.27,>=1.21.1 in c:\programdata\anaconda3\lib\site-packages (from requests>=2.23.0->ultralytics) (1.26.4) Requirement already satisfied: sympy in c:\programdata\anaconda3\lib\site-packages (from torch>=1.8.0->ultralytics) (1.8) Requirement already satisfied: networkx in c:\programdata\anaconda3\lib\site-packages (from torch>=1.8.0->ultralytics) (2.5) Requirement already satisfied: typing-extensions>=4.8.0 in c:\users\19836\appdata\roaming\python\python38\site-packages (from torch>=1.8.0->ultralytics) (4.13.2) Requirement already satisfied: fsspec in c:\programdata\anaconda3\lib\site-packages (from torch>=1.8.0->ultralytics) (0.9.0) Requirement already satisfied: jinja2 in c:\programdata\anaconda3\lib\site-packages (from torch>=1.8.0->ultralytics) (2.11.3) Requirement already satisfied: filelock in c:\programdata\anaconda3\lib\site-packages (from torch>=1.8.0->ultralytics) (3.0.12) Requirement already satisfied: colorama in c:\programdata\anaconda3\lib\site-packages (from tqdm>=4.64.0->ultralytics) (0.4.4) Requirement already satisfied: MarkupSafe>=0.23 in c:\programdata\anaconda3\lib\site-packages (from jinja2->torch>=1.8.0->ultralytics) (1.1.1) Requirement already satisfied: decorator>=4.3.0 in c:\programdata\anaconda3\lib\site-packages (from networkx->torch>=1.8.0->ultralytics) (5.0.6) Requirement already satisfied: mpmath>=0.19 in c:\programdata\anaconda3\lib\site-packages (from sympy->torch>=1.8.0->ultralytics) (1.2.1) Installing collected packages: ultralytics Successfully installed ultralytics-8.3.167 train: weights=weights/yolov5s.pt, cfg=models/yolov5s.yaml, data=data/myvoc.yaml, hyp=data\hyps\hyp.scratch-low.yaml, epochs=50, batch_size=12, imgsz=640, rect=False, resume=False, nosave=False, noval=False, noautoanchor=False, noplots=False, evolve=None, evolve_population=data\hyps, resume_evolve=None, bucket=, cache=None, image_weights=False, device=cpu, multi_scale=False, single_cls=False, optimizer=SGD, sync_bn=False, workers=0, project=runs\train, name=exp, exist_ok=False, quad=False, cos_lr=False, label_smoothing=0.0, patience=100, freeze=[0], save_period=-1, seed=0, local_rank=-1, entity=None, upload_dataset=False, bbox_interval=-1, artifact_alias=latest, ndjson_console=False, ndjson_file=False github: skipping check (not a git repository), for updates see https://github.com/ultralytics/yolov5 requirements: Ultralytics requirements ['pillow>=10.3.0', 'requests>=2.32.0', 'thop>=0.1.1', 'setuptools>=65.5.1', 'wheel>=0.38.0'] not found, attempting AutoUpdate... ERROR: Could not install packages due to an OSError: [WinError 5] 拒绝访问。: 'c:\\programdata\\anaconda3\\lib\\site-packages\\wheel\\bdist_wheel.py' Consider using the --user option or check the permissions. WARNING Retry 1/2 failed: Command 'pip install --no-cache-dir "pillow>=10.3.0" "requests>=2.32.0" "thop>=0.1.1" "setuptools>=65.5.1" "wheel>=0.38.0" ' returned non-zero exit status 1.

PS D:\DAIMABIANXIE\Yolov5-master\yolov5-master (2)\yolov5-master\yolov5-master> python .\detect.py >> detect: weights=yolov5-master\runs\train\exp26\weights\best.pt, source=yolov5-master\VOCData\images\Nframe_1396.jpg, data=data\myvoc.yaml, imgsz=[640, 640], conf_thres=0.25, iou_thres=0.45, max_det=1000, device=, view_img=False, save_txt=False, save_csv=False, save_conf=False, save_crop=False, nosave=False, classes=None, agnostic_nms=False, augment=False, visualize=False, update=False, project=runs\detect, name=exp, exist_ok=False, line_thickness=3, hide_labels=False, hide_conf=False, half=False, dnn=False, vid_stride=1 requirements: Ultralytics requirements ['pillow>=10.3.0', 'requests>=2.32.0', 'setuptools>=65.5.1', 'wheel>=0.38.0'] not found, attempting AutoUpdate... ERROR: Exception: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 171, in _merge_into_criterion crit = self.state.criteria[name] KeyError: 'pillow' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher yield File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read data = self._fp.read(amt) if not fp_closed else b"" File "C:\ProgramData\Anaconda3\lib\http\client.py", line 458, in read n = self.readinto(b) File "C:\ProgramData\Anaconda3\lib\http\client.py", line 502, in readinto n = self.fp.readinto(b) File "C:\ProgramData\Anaconda3\lib\socket.py", line 669, in readinto return self._sock.recv_into(b) File "C:\ProgramData\Anaconda3\lib\ssl.py", line 1241, in recv_into return self.read(nbytes, buffer) File "C:\ProgramData\Anaconda3\lib\ssl.py", line 1099, in read return self._sslobj.read(len, buffer) socket.timeout: The read operation timed out During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\base_command.py", line 189, in _main status = self.run(options, args) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\req_command.py", line 178, in wrapper return func(self, options, args) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 316, in run requirement_set = resolver.resolve( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 121, in resolve self._result = resolver.resolve( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 453, in resolve state = resolution.resolve(requirements, max_rounds=max_rounds) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 318, in resolve name, crit = self._merge_into_criterion(r, parent=None) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 173, in _merge_into_criterion crit = Criterion.from_requirement(self._p, requirement, parent) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 82, in from_requirement if not cands: File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\structs.py", line 124, in __bool__ return bool(self._sequence) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 143, in __bool__ return any(self) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 38, in _iter_built candidate = func() File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 167, in _make_candidate_from_link self._link_candidate_cache[link] = LinkCandidate( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 300, in __init__ super().__init__( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 144, in __init__ self.dist = self._prepare() File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 226, in _prepare dist = self._prepare_distribution() File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 311, in _prepare_distribution return self._factory.preparer.prepare_linked_requirement( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 457, in prepare_linked_requirement return self._prepare_linked_requirement(req, parallel_builds) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 480, in _prepare_linked_requirement local_file = unpack_url( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 230, in unpack_url file = get_http_url( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 108, in get_http_url from_path, content_type = download(link, temp_dir.path) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\network\download.py", line 163, in __call__ for chunk in chunks: File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\progress_bars.py", line 159, in iter for x in it: File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks for chunk in response.raw.stream( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream data = self.read(amt=amt, decode_content=decode_content) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read raise IncompleteRead(self._fp_bytes_read, self.length_remaining) File "C:\ProgramData\Anaconda3\lib\contextlib.py", line 131, in __exit__ self.gen.throw(type, value, traceback) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 443, in _error_catcher raise ReadTimeoutError(self._pool, None, "Read timed out.") pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out. WARNING Retry 1/2 failed: Command 'pip install --no-cache-dir "pillow>=10.3.0" "requests>=2.32.0" "setuptools>=65.5.1" "wheel>=0.38.0" ' returned non-zero exit status 2. ERROR: Exception: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 171, in _merge_into_criterion crit = self.state.criteria[name] KeyError: 'pillow' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher yield File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read data = self._fp.read(amt) if not fp_closed else b"" File "C:\ProgramData\Anaconda3\lib\http\client.py", line 458, in read n = self.readinto(b) File "C:\ProgramData\Anaconda3\lib\http\client.py", line 502, in readinto n = self.fp.readinto(b) File "C:\ProgramData\Anaconda3\lib\socket.py", line 669, in readinto return self._sock.recv_into(b) File "C:\ProgramData\Anaconda3\lib\ssl.py", line 1241, in recv_into return self.read(nbytes, buffer) File "C:\ProgramData\Anaconda3\lib\ssl.py", line 1099, in read return self._sslobj.read(len, buffer) socket.timeout: The read operation timed out During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\base_command.py", line 189, in _main status = self.run(options, args) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\req_command.py", line 178, in wrapper return func(self, options, args) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 316, in run requirement_set = resolver.resolve( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 121, in resolve self._result = resolver.resolve( File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 453, in resolve state = resolution.resolve(requirements, max_rounds=max_rounds) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 318, in resolve name, crit = self._merge_into_criterion(r, parent=None) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 173, in _merge_into_criterion crit = Criterion.from_requirement(self._p, requirement, parent) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 82, in from_requirement if not cands: File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\resolvelib\structs.py", line 124, in __bool__ return bool(self._sequence) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 143, in __bool__ return any(self) File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 38, in _iter_built candidate = func() File 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