Pip install extra index url - How do i declare more than one extra-index-url in pip.conf 22 Using pip with two --extra-index-url arguments that both point to the same domain

 
PyCelonis can be installed with pip: Latest version=x.x.x. pip install --extra-index-url = https://pypi.celonis.cloud/ pycelonis. This will automatically install compatible versions of all dependencies. The PyCelonis team always strives to support the latest versions. . Types of math learning disabilities

Sep 20, 2020 · When you use pipenv run pip install <package>, that skips the custom pipenv operations of updating the Pipfile and the Pipfile.lock. It is basically equivalent to doing a plain pip install <package> as if you did not have/use pipenv. The OP was asking about Poetry, not pip. You have the idea of the --extra-index-url flag right, but when using Poetry you cannot pass that flag to poetry add. You have to define the secondary source in pyproject.toml with the priority supplemental to get the same behavior from poetry that you'd get with pip --extra-index-url –On Windows, you can place a pip.ini file at %APPDATA%\pip\pip.ini. Use the extra-index-url option to tell pip where your alternate package index lives. If your package index doesn’t support SSL, you can supress warnings by identifying it as a trusted-host. Running aws codeartifact login --tool pip ... overrides the default index url (pypi.org), which becomes an issue if CodeArtifact becomes out of sync (a separate issue) Describe the solution you'd like Add an --extra-index-url flag to put the CodeArtifact URL in (only necessary for --tool pip)Mar 26, 2020 · the pip you are referring to is used by another python interpreter. python -m pip install 'fonttools>=3.6.0'. Try to find the correct python interpreter python -V, python3 -V, py -V, py3 -V. Or call python using its full path. You can get the path of your current python with where python on windows and which python on linux. When a wheel is available on pypi.org (“Python Package Index”) it can be installed with pip. For example when you execute python-m pip install kivy in a command line, this will automatically find the appropriate wheel on PyPI. When downloading and installing a wheel directly, use the command python-m pip install <wheel_file_name>, for example:Jul 13, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. When I have added an extra index url to my requirements.txt before doing it this was I had to add the url as a trusted host. Is that relevant? Also I am using python 3.5.3. EDIT: I activated verbose output from pip and it is not even trying to find the package from my repo.Nov 6, 2021 · I think the question here is: 'pip install fails with --index-url to specify test.pypi, but succeeds with --extra-index-url.Out of interest, does this go away with time? I've seen occasional odd problems with pip immediately after pushing upgrad I am trying to install a private python package that was uploaded to an artifact registry inside a docker container (to deploy it on cloudrun). I have sucessfully used that package in a cloud funct...Let's say you have 2 packages you want to install from locally: abc-xyz and foo, and you have your corresponding package files abc-xzy-1.2.3.tar.gz and foo-1.0.0.tar.gz. We'll put your local pypi directory at /my_local_pypi/simple 4 Answers. Pip also can be configured using environment variables, which tox lets you set in the configuration: setenv = PIP_USE_MIRRORS=... Note that --use-mirrors has been deprecated; instead, you can set the PIP_INDEX_URL or PIP_EXTRA_INDEX_URL environment variables, representing the --index-url and --extra-index-url command-line options.Apr 6, 2022 · How can I ship a pip installable package with a requirements.txt file that contains an extra index URL? (If pip doesn't allow this as I suspect, please suggest workarounds!) Right now I have this in the requirements file (just an excerpt): Nov 5, 2020 · As far as I know pip does not allow the --index-url flag inline in requirements.txt files, so it is not possible to write something like the following: Alpha --index-url https://pep503.bravo.dev/simple/ Bravo --index-url https://pep503.charlie.dev/simple/ Charlie Delta Also tox is deprecating its indexserver setting, which allows something like: The pip command will gather available packages from both the standard index-url and the extra-index-url you added for your private repo. If a user attempts to install the latest version of your package: Pip will find any packages called ‘myawesomeprogram’ and attempt to download and install the latest version. So if an attacker were to ...1. the recommendation to use --extra-index-url looks wrong. Tehre is no priority between the default (pypi) index and the extra index. pip will use the first package it finds with that name, which happens to be the "placeholder" on pypi. Try installing with --index-url instead (and maybe report this to NVIDIA devs)あなた自身の単純なリポジトリをホストする¶. あなた自身の単純なリポジトリ 1 をホストしたいのであれば、 devpi のようなソフトウェアパッケージを使うこともできますし、単にウェブサーバ上に適当なディレクトリを作成して静的ファイルをそこに置き、自動でインデックスを生成させる ...I am trying to install a private python package that was uploaded to an artifact registry inside a docker container (to deploy it on cloudrun). I have sucessfully used that package in a cloud funct...Feature request: use --hash to match correct file #6395. Closed. certbot/certbot#6933. Closed. #5874. type: feature request. mentioned this issue. Allow seeding extra packages in virtualenvs while not using --extra-index-url pypa/virtualenv#2250.Remote build with extra index URL: When your packages are available from an accessible custom package index, use a remote build. Before publishing, make sure to create an app setting named PIP_EXTRA_INDEX_URL. The value for this setting is the URL of your custom package index. Using this setting tells the remote build to run pip install using ...Jul 21, 2020 · Philosophical issues to one side, I'd note that devpi fixes this problem, and is available as a solution right now. From the documentation of "index inheritance": All privately uploaded packages will by default inhibit lookups from pypi, allowing to stay safe from an attacker who could otherwise upload malicious release files to the public PyPI index. Environment pip version: 21.0.1 Python version: 3.8.5 OS: Ubuntu 20.04.1 LTS Description I am unable to install packages from multiple private pypi repos. Each private repo only provides a single package.I think the question here is: 'pip install fails with --index-url to specify test.pypi, but succeeds with --extra-index-url.Out of interest, does this go away with time? I've seen occasional odd problems with pip immediately after pushing upgradOn Windows, you can place a pip.ini file at %APPDATA%\pip\pip.ini. Use the extra-index-url option to tell pip where your alternate package index lives. If your package index doesn’t support SSL, you can supress warnings by identifying it as a trusted-host.If you try to run pip install -r requirements.txt with those environment variables set, you will find that pip still asks for credentials. This is because pip does not interpolate the expression ${PYPI_USERNAME} as one would expect, but rather url encodes it.Note: All the names (eg: feed, project) must follow the HTTPS URL convention.A simple (& actually correct) way to get to know the URL is goto Artifacts --> Select your artifact feed --> Connect to feed --> PIP --> Here you will get the correct URL. Also, use the some feed name both the place in URL.When trying to store multiple extra-index-url in my pip.ini file. I find that I need to have the same username and password for both otherwise I am unable to connect. I find that I need to have the same username and password for both otherwise I am unable to connect. A fake package to warn the user they are not installing the correct package. ... pip install--extra-index-url https://pypi.nvidia.com cugraph-cu11. Project details.Jul 17, 2023 · light-the-torch is a small utility that wraps pip to ease the installation process for PyTorch distributions like torch, torchvision, torchaudio, and so on as well as third-party packages that depend on them. It auto-detects compatible CUDA versions from the local setup and installs the correct PyTorch binaries without user interference. Apr 25, 2020 · However, when I try to use pip to install a package, it still doesn't check this URL. I can install the package by using pip install <package> --extra-index-url https://[username]:[password]@artifactory, but just curious why my pip.conf is not being used. BTW I am using a virtual env when I run pip. In these commands, you can use --extra-index-url instead of --index-url. However, using --extra-index-url makes you vulnerable to dependency confusion attacks because it checks the PyPi repository for the package before it checks the custom repository. --extra-index-url adds the provided URL as an additional registry which the client checks if ...-i,--index-url <url> # Base URL of the Python Package Index (default https://pypi.org/simple). This should point to a repository compliant with PEP 503 (the simple repository API) or a local directory laid out in the same format.--extra-index-url <url> # Extra URLs of package indexes to use in addition to --index-url. I am building an app that has a dependency available on a private Pypi server. My Dockerfile looks like this: FROM python:3.6 WORKDIR /src/mylib COPY . ./ RUN pip install . I want pip to use ... Jul 24, 2020 · This was a major issue for us. Too many chicken&egg issues with tokens auto-expiring after 12 hours. Machines (especially ubuntu 18) in order to simply use the code artifact autologin often need as their first step to upgrade pip, which requires a newer pip than the latest system default. Oct 12, 2022 · --extra-index-url [some repository] --index-url [some other repository with different packages] [some package from the extra-index-url repository] Run the command pip install --user -r requirements.txt I have a virtualenv with pip inside. I have my own package index. I want to add this package to pip to avoid invoking pip install some_package -i my_index all the time; I want to add this index only to this specific pip instance running in virtualenv. In that case, which file should I modify and how?Dec 20, 2020 · Conda won't search PyPI or alternative pip-compatible indexes automatically, but one can still use the --index-url or --extra-index-url flags when using pip install. E.g., E.g., Ad Hoc Installation 1 I have following install comand for a package: pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu116 and would need to add this to my requirements.txt file. I have done it by adding this to the end of the file: -i https://download.pytorch.org/whl/cu116 torch torchvision torchaudioSep 18, 2013 · If you see the url as value for this cofig, you can "unset" it using: pip config unset global.extra-index-url. when you run this, a message will be shown in terminal: "Writing to ...\pip\pip.ini" I suggest that also unset global.trusted_host related to this setting to be sure about other side-effects. -i,--index-url <url> # Base URL of the Python Package Index (default https://pypi.org/simple). This should point to a repository compliant with PEP 503 (the simple repository API) or a local directory laid out in the same format.--extra-index-url <url> # Extra URLs of package indexes to use in addition to --index-url. Windows Description # Install packages from: PyPI (and other indexes) using requirement specifiers. VCS project urls. Local project directories. Local or remote source archives. pip also supports installing from “requirements files”, which provide an easy way to specify a whole environment to be installed. Overview # pip install has several stages:Nov 28, 2017 · If I don't url-encode the password, the URL can't be parsed. If I do url-encode the password, I think pip isn't url-decoding it before attempting to authenticate. It looks like the only workaround right now is to use a password without characters that need URL encoding. 10 You should add ARG to your Dockerfile. Your Dockerfile should look like this: FROM python:3.6 ARG PIP_EXTRA_INDEX_URL # YOU CAN ALSO SET A DEFAULT VALUE: # ARG PIP_EXTRA_INDEX_URL=DEFAULT_VALUE RUN echo "PIP_EXTRA_INDEX_URL = $PIP_EXTRA_INDEX_URL" # you could also use braces - $ {PIP_EXTRA_INDEX_URL} WORKDIR /src/mylib COPY . ./Running aws codeartifact login --tool pip ... overrides the default index url (pypi.org), which becomes an issue if CodeArtifact becomes out of sync (a separate issue) Describe the solution you'd like Add an --extra-index-url flag to put the CodeArtifact URL in (only necessary for --tool pip)Install a PyPI package. In GitLab 14.2 and later , when a PyPI package is not found in the Package Registry, the request is forwarded to pypi.org. Administrators can disable this behavior in the Continuous Integration settings. When you use the --index-url option, do not specify the port if it is a default port, such as 80 for a URL starting ...Nov 28, 2017 · If I don't url-encode the password, the URL can't be parsed. If I do url-encode the password, I think pip isn't url-decoding it before attempting to authenticate. It looks like the only workaround right now is to use a password without characters that need URL encoding. Oct 13, 2014 · 66. Add an extra index location to the requirements file just before the package/project name: --extra-index-url <Extra URLs other than index-url> <some_project_name>. Alternatively, you may use -i or --index-url <Base URL of the Python Package Index>. Refer: requirements file format. Jul 5, 2022 · The OP was asking about Poetry, not pip. You have the idea of the --extra-index-url flag right, but when using Poetry you cannot pass that flag to poetry add. You have to define the secondary source in pyproject.toml with the priority supplemental to get the same behavior from poetry that you'd get with pip --extra-index-url – Jan 25, 2019 · I juse want build whl binary for python3.7. Tensorflow, Mxnet and PyTorch support python3.7. So, i decide to wait your team. You can do it yourself using one click build I have provided. 4 Answers. Pip also can be configured using environment variables, which tox lets you set in the configuration: setenv = PIP_USE_MIRRORS=... Note that --use-mirrors has been deprecated; instead, you can set the PIP_INDEX_URL or PIP_EXTRA_INDEX_URL environment variables, representing the --index-url and --extra-index-url command-line options.The pip command will gather available packages from both the standard index-url and the extra-index-url you added for your private repo. If a user attempts to install the latest version of your package: Pip will find any packages called ‘myawesomeprogram’ and attempt to download and install the latest version. So if an attacker were to ...pip allows you to specify which version of a package to install using version specifiers. For example, to install a specific version of requests: Unix/macOS. python3 -m pip install 'requests==2.18.4'. Windows. To install the latest 2.x release of requests: Unix/macOS. python3 -m pip install 'requests>=2.0.0,<3.0.0'.PyCelonis can be installed with pip: Latest version=x.x.x. pip install --extra-index-url = https://pypi.celonis.cloud/ pycelonis. This will automatically install compatible versions of all dependencies. The PyCelonis team always strives to support the latest versions.Aug 9, 2022 · Conda can create an environment.yml that specifies both conda packages & pip packages. The problem is, I want to specify a pip package (torch==1.12.1+cu116), that is only available in the follo... Jul 24, 2020 · This was a major issue for us. Too many chicken&egg issues with tokens auto-expiring after 12 hours. Machines (especially ubuntu 18) in order to simply use the code artifact autologin often need as their first step to upgrade pip, which requires a newer pip than the latest system default. the pip you are referring to is used by another python interpreter. python -m pip install 'fonttools>=3.6.0'. Try to find the correct python interpreter python -V, python3 -V, py -V, py3 -V. Or call python using its full path. You can get the path of your current python with where python on windows and which python on linux.Aug 25, 2023 · For project-scoped feeds that are in a different project than where the pipeline is running, you must manually give the project and the feed access to the pipeline's project's build service. - task: PipAuthenticate@1 displayName: 'Pip Authenticate' inputs: # Provide list of feed names which you want to authenticate. On Windows, you can place a pip.ini file at %APPDATA%\pip\pip.ini. Use the extra-index-url option to tell pip where your alternate package index lives. If your package index doesn’t support SSL, you can supress warnings by identifying it as a trusted-host. It's possible the OP can't use any other command except pip install -r req.txt. I have the same issue; pip install -r requirements.txt is run by another team, not me; all I have control over is the contents of requirements.txt. –Aug 15, 2022 · In these commands, you can use --extra-index-url instead of --index-url. However, using --extra-index-url makes you vulnerable to dependency confusion attacks because it checks the PyPi repository for the package before it checks the custom repository. --extra-index-url adds the provided URL as an additional registry which the client checks if ... Oct 12, 2022 · --extra-index-url [some repository] --index-url [some other repository with different packages] [some package from the extra-index-url repository] Run the command pip install --user -r requirements.txt Dec 5, 2019 · I am trying to install a package from a private repository on Git. I am using Personal Access Token in my Git URL in order to bypass the manual authentication step. (You can read about Personal Acc... All options to pip can be made as environment variables, eg for --extra-index-url, set the environment variable PIP_EXTRA_INDEX_URL, etc; My solution to this is to move my pip.conf to an encrypted directory, and then symlink to the decrypt file; As you can see, the authentication is passed as basicAuth.If you want to allow pip to also download packages from PyPI, you can specify --extra-index-url to point to PyPI. This is useful when the package you’re testing has dependencies: This is useful when the package you’re testing has dependencies:-i,--index-url <url> # Base URL of the Python Package Index (default https://pypi.org/simple). This should point to a repository compliant with PEP 503 (the simple repository API) or a local directory laid out in the same format.--extra-index-url <url> # Extra URLs of package indexes to use in addition to --index-url. Environment pip version: 21.0.1 Python version: 3.8.5 OS: Ubuntu 20.04.1 LTS Description I am unable to install packages from multiple private pypi repos. Each private repo only provides a single package.the pip you are referring to is used by another python interpreter. python -m pip install 'fonttools>=3.6.0'. Try to find the correct python interpreter python -V, python3 -V, py -V, py3 -V. Or call python using its full path. You can get the path of your current python with where python on windows and which python on linux.If you see the url as value for this cofig, you can "unset" it using: pip config unset global.extra-index-url. when you run this, a message will be shown in terminal: "Writing to ...\pip\pip.ini" I suggest that also unset global.trusted_host related to this setting to be sure about other side-effects.This question is like pip is not using extra index url defined in pip.conf, but there was no solution to it. I'm giving more details in this question: I'm giving more details in this question: I have a ~/.config/pip/pip.conf file with the following lines:Nov 1, 2019 · It appears, there is a set_pip_option method in the SDK which sorts out the problem with one single extra-index-url, e.g.. from azureml.core.environment import CondaDependencies dep = CondaDependencies.create(pip_packages=["pyyaml", "param"]) dep.set_pip_option("--extra-index-url https://user:[email protected]/url") Sep 1, 2022 · 1. I have following install comand for a package: pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu116. and would need to add this to my requirements.txt file. I have done it by adding this to the end of the file: -i https://download.pytorch.org/whl/cu116 torch torchvision torchaudio. A fake package to warn the user they are not installing the correct package. ... pip install--extra-index-url https://pypi.nvidia.com cudf-cu12. Project details.Oct 17, 2021 · When running pipenv install -v (with Pipfile exists in the same directory and no specific packages), seems PIP_INDEX_URL and PIP_EXTRA_INDEX_URL will not take effects, but pipenv install -v [specific-package] seems to work. P.S. Setting PIPENV_PYPI_MIRROR overrides the behavior but might not be a fix to this bug I think. Expected result Jun 29, 2023 · 1. the recommendation to use --extra-index-url looks wrong. Tehre is no priority between the default (pypi) index and the extra index. pip will use the first package it finds with that name, which happens to be the "placeholder" on pypi. Try installing with --index-url instead (and maybe report this to NVIDIA devs) When a wheel is available on pypi.org (“Python Package Index”) it can be installed with pip. For example when you execute python-m pip install kivy in a command line, this will automatically find the appropriate wheel on PyPI. When downloading and installing a wheel directly, use the command python-m pip install <wheel_file_name>, for example:Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brandNov 5, 2020 · As far as I know pip does not allow the --index-url flag inline in requirements.txt files, so it is not possible to write something like the following: Alpha --index-url https://pep503.bravo.dev/simple/ Bravo --index-url https://pep503.charlie.dev/simple/ Charlie Delta Also tox is deprecating its indexserver setting, which allows something like: On Windows, you can place a pip.ini file at %APPDATA%\pip\pip.ini. Use the extra-index-url option to tell pip where your alternate package index lives. If your package index doesn’t support SSL, you can supress warnings by identifying it as a trusted-host. Apr 25, 2020 · However, when I try to use pip to install a package, it still doesn't check this URL. I can install the package by using pip install <package> --extra-index-url https://[username]:[password]@artifactory, but just curious why my pip.conf is not being used. BTW I am using a virtual env when I run pip. 4 Answers. Pip also can be configured using environment variables, which tox lets you set in the configuration: setenv = PIP_USE_MIRRORS=... Note that --use-mirrors has been deprecated; instead, you can set the PIP_INDEX_URL or PIP_EXTRA_INDEX_URL environment variables, representing the --index-url and --extra-index-url command-line options. I have executed the pip install commands from RAPIDS into Google Colab ipynb jupyter notebook. They are: pip install cudf-cu11 dask-cudf-cu11 --extra-index-url=https ...What I don't understand is whether pip knows which index url (including extra index urls) to use for each package. After eyeballing the structure of the urls, my guess is it does not. If pip naively goes through each index url (including extra index urls) to see which packages it can install, then I think it is possible the issue has nothing to ...1 I have following install comand for a package: pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu116 and would need to add this to my requirements.txt file. I have done it by adding this to the end of the file: -i https://download.pytorch.org/whl/cu116 torch torchvision torchaudioBy default, when you "pip install" it pulls from the public pypi repo, but if you want to pull from a custom repo there are 3 ways to do so (listed in order of precedence): By passing a CLI flag to specify a custom index url. pip install -i/--index-url <url> <package>. By setting an environment variable. export PIP_INDEX_URL=<url> pip install ...Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand

Let's say you have 2 packages you want to install from locally: abc-xyz and foo, and you have your corresponding package files abc-xzy-1.2.3.tar.gz and foo-1.0.0.tar.gz. We'll put your local pypi directory at /my_local_pypi/simple. Lkq pick your part baltimore hawkins point photos

pip install extra index url

By default, when you "pip install" it pulls from the public pypi repo, but if you want to pull from a custom repo there are 3 ways to do so (listed in order of precedence): By passing a CLI flag to specify a custom index url. pip install -i/--index-url <url> <package>. By setting an environment variable. export PIP_INDEX_URL=<url> pip install ...If you see the url as value for this cofig, you can "unset" it using: pip config unset global.extra-index-url. when you run this, a message will be shown in terminal: "Writing to ...\pip\pip.ini" I suggest that also unset global.trusted_host related to this setting to be sure about other side-effects.I am trying to install a private python package that was uploaded to an artifact registry inside a docker container (to deploy it on cloudrun). I have sucessfully used that package in a cloud funct...Apr 9, 2019 · Feature request: use --hash to match correct file #6395. Closed. certbot/certbot#6933. Closed. #5874. type: feature request. mentioned this issue. Allow seeding extra packages in virtualenvs while not using --extra-index-url pypa/virtualenv#2250. In these commands, you can use --extra-index-url instead of --index-url. However, using --extra-index-url makes you vulnerable to dependency confusion attacks because it checks the PyPi repository for the package before it checks the custom repository. --extra-index-url adds the provided URL as an additional registry which the client checks if ...Sep 18, 2013 · If you see the url as value for this cofig, you can "unset" it using: pip config unset global.extra-index-url. when you run this, a message will be shown in terminal: "Writing to ...\pip\pip.ini" I suggest that also unset global.trusted_host related to this setting to be sure about other side-effects. Commands like pip install will look for the PIP_EXTRA_INDEX_URL environment variable, similar to how they look for configuration in a pip.ini file. In other words, if your coworkers set up this variable in their environment, they just have to do pip install -r requirements.txt and those indices will be included in package resolution. It may ...Additionally, conda is the recommended way to install the right dependencies for the training and evaluation code. If you nevertherless want to use pip install, AFAICT this command line should install the right packages (from an environment with just python 3.9):Instead of downgrading pip you can also use the old dependency resolver until pip 21.0 ships (that's when they strip the old resolver from the code base), like so:Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsNote. CUDA 11.0 and CUDA 12.0 build uses CUDA toolkit enhanced compatibility. It is built with the latest CUDA 11.x/12.x respectively toolkit while it can run on the latest, stable CUDA 11.0 and CUDA 12.0 capable drivers (450.80 or later and 525.60 or later respectively).-i,--index-url <url> # Base URL of the Python Package Index (default https://pypi.org/simple). This should point to a repository compliant with PEP 503 (the simple repository API) or a local directory laid out in the same format.--extra-index-url <url> # Extra URLs of package indexes to use in addition to --index-url. It sets and un-sets environment variables (such as PIP_EXTRA_INDEX_URL) automatically when cd-ing in and out of directories. It would require no change in pip (or pip-tools or whatever), but it does not seem to be usable on Windows (or at least not straightforward), because it is based on the shell.When a wheel is available on pypi.org (“Python Package Index”) it can be installed with pip. For example when you execute python-m pip install kivy in a command line, this will automatically find the appropriate wheel on PyPI. When downloading and installing a wheel directly, use the command python-m pip install <wheel_file_name>, for example: When trying to store multiple extra-index-url in my pip.ini file. I find that I need to have the same username and password for both otherwise I am unable to connect. I find that I need to have the same username and password for both otherwise I am unable to connect.pip が PyPI からもパッケージをダウンロードできるようにしたいのであれば、 --extra-index-url に PyPI を指定しましょう。テストしようとしているパッケージが依存関係を持つ場合にこれが役に立ちます: Version 0.0.1 is published to the official PyPI index, whereas higher versions are published to the private registry. The command succeeds locally on my Mac, as well as when I use the python:3.9-bullseye Docker image, so there's no issue with the registry itself.It sets and un-sets environment variables (such as PIP_EXTRA_INDEX_URL) automatically when cd-ing in and out of directories. It would require no change in pip (or pip-tools or whatever), but it does not seem to be usable on Windows (or at least not straightforward), because it is based on the shell..

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