英文:
Can't import pytorch-lightning even though I've installed it
问题
我尝试重构我的Python代码以使用PyTorch-Lightning。但是，我遇到了一个问题，无法导入PyTorch-Lightning库。我收到以下错误：
ModuleNotFoundError Traceback (most recent call last)Cell In[1], line 1412 from fastai.vision.all import *13 from ipywidgets import IntProgress---> 14 import pytorch_lightning as plModuleNotFoundError: No module named 'pytorch_lightning'
在导入时找不到pytorch_lightning库。
我只有一个Python环境和内核（我在Visual Studio Code中使用Jupyter Notebook）。当我检查pip列表时，我得到以下输出：
Package Version------------------------ -------------...pytorch-lightning 2.0.1...
正如您所见，已经安装了PyTorch-Lightning库，但即使我卸载，重新安装最新版本，再通过GitHub存储库安装，进行更新，都无法解决问题。看起来有什么问题？
英文:
I tried to refactor my python code to use Pytorch-Lightning. However I've faced the problem that I can't import Pytorch-Lightning library. I get this error:
ModuleNotFoundError Traceback (most recent call last)Cell In[1], line 1412 from fastai.vision.all import *13 from ipywidgets import IntProgress---> 14 import pytorch_lightning as plModuleNotFoundError: No module named 'pytorch_lightning'
It doesn't see pytorch_lightning and lightning when importing.
I have only one python environment and kernel(I'm using Jupyter Notebook in Visual Studio Code).
When I check pip list, I get this output:
Package Version------------------------ -------------aiohttp 3.8.4aiosignal 1.3.1anyio 3.6.2apturl 0.5.2arrow 1.2.3async-timeout 4.0.2attrs 22.2.0Automat 0.8.0backcall 0.1.0bcrypt 3.1.7beautifulsoup4 4.12.0bleach 3.1.1blessed 1.20.0blinker 1.4Brlapi 0.7.0certifi 2022.12.7chardet 3.0.4charset-normalizer 3.1.0Click 7.0cloud-init 22.4.2cmake 3.26.1colorama 0.4.3command-not-found 0.3configobj 5.0.6constantly 15.1.0croniter 1.3.8cryptography 2.8cupshelpers 1.0dateutils 0.6.12dbus-python 1.2.16decorator 4.4.2deepdiff 6.3.0defer 1.0.6defusedxml 0.6.0distro 1.4.0distro-info 0.23ubuntu1dnspython 2.3.0duplicity 0.8.12.0email-validator 1.3.1entrypoints 0.3fastapi 0.88.0fasteners 0.14.1filelock 3.11.0frozenlist 1.3.3fsspec 2023.4.0future 0.18.2h11 0.14.0html5lib 1.0.1httpcore 0.16.3httplib2 0.14.0httptools 0.5.0httpx 0.23.3hyperlink 19.0.0idna 3.4importlib-metadata 1.5.0incremental 16.10.1inquirer 3.1.3install 1.3.5ipykernel 5.2.0ipython 7.13.0ipython_genutils 0.2.0ipywidgets 6.0.0itsdangerous 2.1.2jedi 0.15.2Jinja2 3.1.2jsonpatch 1.22jsonpointer 2.0jsonschema 3.2.0jupyter-client 6.1.2jupyter-core 4.6.3keyring 18.0.1language-selector 0.1launchpadlib 1.10.13lazr.restfulclient 0.14.2lazr.uri 1.0.3lightning 2.1.0.dev0lightning-cloud 0.5.32lightning-utilities 0.8.0lit 16.0.0lockfile 0.12.2louis 3.12.0macaroonbakery 1.3.1Mako 1.1.0markdown-it-py 2.2.0MarkupSafe 2.1.2mdurl 0.1.2mistune 0.8.4monotonic 1.5more-itertools 4.2.0mpmath 1.3.0multidict 6.0.4nbconvert 5.6.1nbformat 5.0.4netifaces 0.10.4networkx 3.1notebook 6.0.3numpy 1.24.2nvidia-cublas-cu11 11.10.3.66nvidia-cuda-cupti-cu11 11.7.101nvidia-cuda-nvrtc-cu11 11.7.99nvidia-cuda-runtime-cu11 11.7.99nvidia-cudnn-cu11 8.5.0.96nvidia-cufft-cu11 10.9.0.58nvidia-curand-cu11 10.2.10.91nvidia-cusolver-cu11 11.4.0.1nvidia-cusparse-cu11 11.7.4.91nvidia-nccl-cu11 2.14.3nvidia-nvtx-cu11 11.7.91oauthlib 3.1.0olefile 0.46ordered-set 4.1.0orjson 3.8.9packaging 23.0pandocfilters 1.4.2paramiko 2.6.0parso 0.5.2pexpect 4.6.0pickleshare 0.7.5Pillow 7.0.0pip 23.0.1prometheus-client 0.7.1prompt-toolkit 2.0.10protobuf 3.6.1psutil 5.9.4pyasn1 0.4.2pyasn1-modules 0.2.1pycairo 1.16.2pycups 1.9.73pydantic 1.10.7Pygments 2.14.0PyGObject 3.36.0PyHamcrest 1.9.0PyJWT 1.7.1pymacaroons 0.13.0PyNaCl 1.3.0pyOpenSSL 19.0.0pyprof2calltree 1.4.4pyRFC3339 1.1pyrsistent 0.15.5pyserial 3.4python-apt 2.0.1python-dateutil 2.8.2python-debian 0.1.36ubuntu1python-dotenv 1.0.0python-editor 1.0.4python-multipart 0.0.6pytorch-lightning 2.0.1pytz 2019.3pyxdg 0.26PyYAML 6.0pyzmq 18.1.1ranger-fm 1.9.3readchar 4.0.5reportlab 3.5.34requests 2.28.2requests-unixsocket 0.2.0rfc3986 1.5.0rich 13.3.3screen-resolution-extra 0.0.0SecretStorage 2.3.1Send2Trash 1.5.0service-identity 18.1.0setuptools 67.6.1simplejson 3.16.0six 1.14.0sniffio 1.3.0sos 4.4soupsieve 2.4ssh-import-id 5.10starlette 0.22.0starsessions 1.3.0sympy 1.11.1systemd-python 234terminado 0.8.2testpath 0.4.4torch 2.0.0torchmetrics 0.11.4tornado 5.1.1tqdm 4.65.0traitlets 5.9.0triton 2.0.0Twisted 18.9.0typing_extensions 4.5.0ubuntu-advantage-tools 8001ubuntu-drivers-common 0.0.0ufw 0.36ujson 5.7.0unattended-upgrades 0.1urllib3 1.26.15usb-creator 0.3.7uvicorn 0.21.1uvloop 0.17.0wadllib 1.3.3watchfiles 0.19.0wcwidth 0.1.8webencodings 0.5.1websocket-client 1.5.1websockets 10.4wheel 0.40.0widgetsnbextension 2.0.0xkit 0.0.0yarl 1.8.2zipp 1.0.0zope.interface 4.7.1
As you can see, there is a Pytorch-Lightning library installed, however even when I uninstall, reinstall with newest version, install again through GitHub repository, updated, nothing works. What seems to be a problem?
答案1
得分: 1
最新版本的 pl API 已经发生了变化。
你可以尝试：
import lightning as pl
英文:
The API of newest version of pl has been changed.
You can try:
import lightning as pl
答案2
得分: 0
使用PyTorch Lightning 2.0的正确导入方式是 -
import lightning Lclass Model(L.LightningModule):...trainer = L.Trainer(max_epochs=1)trainer.fit(Model(), dataloader)
我们还发布了一个升级指南，链接在这里：1
英文:
moving forward with PyTorch Lightning 2.0, correct way to import is -
import lightning Lclass Model(L.LightningModule):...trainer = L.Trainer(max_epochs=1)trainer.fit(Model(), dataloader)
We also published an upgrade guide here
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