plotly · emilykl · Nov 22, 2024 · Jun 19, 2024 · Jun 19, 2024 · Jun 19, 2024
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,9 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).

+### Added
+- Add `plotly[express]` extra for easily installing Plotly Express dependencies [#4644](https://github.com/plotly/plotly.py/pull/4644)
+
 ### Removed
 - Drop deprecated `pointcloud` and `heatmapgl` traces from the API
 - Drop `tenacity` dependency [#4831](https://github.com/plotly/plotly.js/pull/4831)

diff --git a/contributing.md b/contributing.md
@@ -136,19 +136,17 @@ We will support Python 3.12 and higher versions soon.
 [conda-env]: https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#creating-an-environment-with-commands
 [virtualenv]: http://docs.python-guide.org/en/latest/dev/virtualenvs/

-### Install requirements - (Non-Windows)
+### Install development requirements (Non-Windows)
 ```bash
-(plotly_dev) $ pip install -r packages/python/plotly/requirements.txt
-(plotly_dev) $ pip install -r packages/python/plotly/optional-requirements.txt
+(plotly_dev) $ pip install -r packages/python/plotly/requires-optional.txt
 ```
-### Install requirements - (Windows + Conda)
+### Install development requirements (Windows + Conda)
 Because Windows requires Visual Studio libraries to compile some of the optional dependencies, follow these steps to
 complete installation and avoid gdal-config errors.

 ```bash
-(plotly_dev) $ pip install -r packages/python/plotly/requirements.txt
 (plotly_dev) $ conda install fiona
-(plotly_dev) $ pip install -r packages/python/plotly/optional-requirements.txt
+(plotly_dev) $ pip install -r packages/python/plotly/requires-optional.txt
 ```

 ### Editable install of plotly packages
@@ -178,7 +176,7 @@ documentation on _development mode_.
 This repo uses the [Black](https://black.readthedocs.io/en/stable/) code formatter,
 and the [pre-commit](https://pre-commit.com/) library to manage a git commit hook to
 run Black prior to each commit.  Both pre-commit and black are included in the
-`packages/python/plotly/optional-requirements.txt` file, so you should have them
+`packages/python/plotly/requires-optional.txt` file, so you should have them
 installed already if you've been following along.

 To enable the Black formatting git hook, run the following from within your virtual
@@ -266,7 +264,7 @@ We take advantage of two tools to run tests:

 ### Running Tests with `pytest`

-Since our tests cover *all* the functionality, to prevent tons of errors from showing up and having to parse through a messy output, you'll need to install `optional-requirements.txt` as explained above.
+Since our tests cover *all* the functionality, to prevent tons of errors from showing up and having to parse through a messy output, you'll need to install `requires-optional.txt` as explained above.

 After you've done that, go ahead and run the test suite!


diff --git a/packages/python/plotly/MANIFEST.in b/packages/python/plotly/MANIFEST.in
@@ -2,4 +2,6 @@ include LICENSE.txt
 include README.md
 include versioneer.py
 include plotly/_version.py
+include requires-install.txt
+include requires-express.txt
 include plotly/package_data/widgetbundle.js
diff --git a/packages/python/plotly/optional-requirements.txt b/packages/python/plotly/optional-requirements.txt
diff --git a/packages/python/plotly/plotly/express/__init__.py b/packages/python/plotly/plotly/express/__init__.py
@@ -2,13 +2,24 @@
 `plotly.express` is a terse, consistent, high-level wrapper around `plotly.graph_objects`
 for rapid data exploration and figure generation. Learn more at https://plotly.com/python/plotly-express/
 """
+
 from plotly import optional_imports

 np = optional_imports.get_module("numpy")
 if np is None:
    raise ImportError(
        """\
-Plotly express requires numpy to be installed."""
+Plotly Express requires numpy to be installed. You can install numpy using pip with:
+
+$ pip install numpy
+
+Or install Plotly Express and its dependencies directly with:
+
+$ pip install "plotly[express]"
+
+You can also use Plotly Graph Objects to create a large number of charts without installing
+numpy. See examples here: https://plotly.com/python/graph-objects/
+"""
    )

 from ._imshow import imshow

diff --git a/packages/python/plotly/requires-express.txt b/packages/python/plotly/requires-express.txt
@@ -0,0 +1,8 @@
+### Required dependencies for Plotly Express    ###
+###                                             ###
+### To install, run:                            ###
+###      $ pip install -r requires-express.txt  ###
+###                                             ###
+###################################################
+
+numpy
diff --git a/packages/python/plotly/requirements.txt → packages/python/plotly/requires-install.txt b/packages/python/plotly/requirements.txt → packages/python/plotly/requires-install.txt
@@ -1,9 +1,10 @@
 ### Dependencies for Core Plotly Functionality  ###
 ###                                             ###
 ### To install, run:                            ###
-###      $ pip install -r requirements.txt      ###
+###      $ pip install -r requires-install.txt  ###
 ###                                             ###
 ###################################################

 ## dataframe agnostic layer ##
 narwhals>=1.13.3
+packaging
diff --git a/packages/python/plotly/requires-optional.txt b/packages/python/plotly/requires-optional.txt
@@ -0,0 +1,59 @@
+### Optional Dependencies for Additional Plotly Functionality   ###
+###                                                             ###
+### This file lists packages which are not strictly required    ###
+### by Plotly.py, but which are needed to use some of the       ###
+### library's functionality. See headings below for more        ###
+### See headings below for more detail.                         ###
+###                                                             ###
+### Packages used in the development process are also listed    ###
+### here.                                                       ###
+###                                                             ###
+### To install, run:                                            ###
+###      $ pip install -r requires-optional.txt                 ###
+###                                                             ###
+###################################################################
+
+## numpy (required by Plotly Express) ##
+numpy
+
+## matplotlylib dependencies ##
+# matplotlib==2.2.2
+
+## testing dependencies ##
+coverage==4.3.1
+mock==2.0.0
+pytest==8.1.1
+xarray
+pytz
+
+## orca dependencies ##
+requests
+psutil
+
+## code formatting ##
+pre-commit
+black==22.3.0
+
+## codegen dependencies ##
+inflect
+
+## template generation ##
+colorcet
+
+## pandas (for some matplotlib functionality) ##
+pandas
+
+## scipy deps (for some Figure Factory functions) ##
+scipy
+
+## jupyter ##
+jupyter
+anywidget
+
+## deps for _county_choropleth.py (Figure Factory) ##
+pyshp
+geopandas
+shapely
+
+## image uri conversion ##
+pillow
diff --git a/packages/python/plotly/setup.py b/packages/python/plotly/setup.py
@@ -38,6 +38,7 @@
 else:
    skip_npm = False

+
 # Load plotly.js version from js/package.json
 def plotly_js_version():
    path = os.path.join(here, "js", "package.json")
@@ -260,7 +261,6 @@ def request_json(url):


 def get_latest_publish_build_info(repo, branch):
-
    url = (
        r"https://circleci.com/api/v1.1/project/github/"
        r"{repo}/tree/{branch}?limit=100&filter=completed"
@@ -494,6 +494,14 @@ def run(self):
 ]

 versioneer_cmds = versioneer.get_cmdclass()
+
+
+def read_req_file(req_type):
+    with open(f"requires-{req_type}.txt", encoding="utf-8") as fp:
+        requires = (line.strip() for line in fp)
+        return [req for req in requires if req and not req.startswith("#")]
+
+
 setup(
    name="plotly",
    version=versioneer.get_version(),
@@ -551,7 +559,10 @@ def run(self):
            "package_data/datasets/*",
        ],
    },
-    install_requires=["narwhals>=1.13.3", "packaging"],
+    install_requires=read_req_file("install"),
+    extras_require={
+        "express": read_req_file("express"),
+    },
    zip_safe=False,
    cmdclass=dict(
        build_py=js_prerelease(versioneer_cmds["build_py"]),
-Original file line number
+Diff line change
@@ -0,0 +1,8 @@
+    ### Required dependencies for Plotly Express    ###
+    ###                                             ###
+    ### To install, run:                            ###
+    ###      $ pip install -r requires-express.txt  ###
+    ###                                             ###
+    ###################################################
+    numpy
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