Use the JsCode object from the js_loader package

.github/workflows/deploy-docs.yml

@@ -36,6 +36,9 @@ jobs:
           --file requirements.txt
           --file requirements-dev.txt
 
+    - name: Install folium from source
+      run: python -m pip install js_loader
+
     - name: Install folium from source
       run: python -m pip install -e . --no-deps --force-reinstall
 

.github/workflows/test_code.yml

@@ -33,5 +33,8 @@ jobs:
     - name: Install folium from source
       run: python -m pip install -e . --no-deps --force-reinstall
 
+    - name: Install js_loader
+      run: python -m pip install js_loader
+
     - name: Code tests
       run: python -m pytest -vv --ignore=tests/selenium

.github/workflows/test_latest_branca.yml

@@ -26,6 +26,10 @@ jobs:
       shell: bash -l {0}
       run: python -m pip install -e . --no-deps --force-reinstall
 
+    - name: Install js_loader
+      shell: bash -l {0}
+      run: python -m pip install js_loader
+
     - name: Tests with latest branca
       shell: bash -l {0}
       run: |

.github/workflows/test_mypy.yml

@@ -27,6 +27,11 @@ jobs:
       run: |
         python -m pip install -e . --no-deps --force-reinstall
 
+    - name: Install js_loader
+      shell: bash -l {0}
+      run: |
+        python -m pip install js_loader
+
     - name: Mypy test
       shell: bash -l {0}
       run: |

.github/workflows/test_selenium.yml

@@ -30,6 +30,10 @@ jobs:
       shell: bash -l {0}
       run: python -m pip install -e . --no-deps --force-reinstall
 
+    - name: Install js_loader
+      shell: bash -l {0}
+      run: python -m pip install js_loader
+
     - name: Selenium tests
       shell: bash -l {0}
       run: python -m pytest tests/selenium -vv

folium/utilities.py

@@ -35,6 +35,7 @@
     none_min,
     write_png,
 )
+from js_loader import JsCode  # noqa: F401
 
 try:
     import pandas as pd
@@ -436,19 +437,6 @@ def get_and_assert_figure_root(obj: Element) -> Figure:
     return figure
 
 
-class JsCode:
-    """Wrapper around Javascript code."""
-
-    def __init__(self, js_code: Union[str, "JsCode"]):
-        if isinstance(js_code, JsCode):
-            self.js_code: str = js_code.js_code
-        else:
-            self.js_code = js_code
-
-    def __str__(self):
-        return self.js_code
-
-
 def parse_font_size(value: Union[str, int, float]) -> str:
     """Parse a font size value, if number set as px"""
     if isinstance(value, (int, float)):

setup.py

@@ -41,6 +41,7 @@ def walk_subpkg(name):
 with open("requirements.txt") as f:
     tests_require = f.readlines()
 install_requires = [t.strip() for t in tests_require]
+install_requires.append("js_loader")
 
 setup(
     name="folium",