prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Not all dependecies are listed
  Would it be possible to add pandas (and numpy) to the list of dependencies? They're both imported in various places but not listed. This occasionally causes problems for packages importing plotly, since `pip` may not install all dependencies.
  
  Xref: https://github.com/deeptools/deepTools/issues/669
  Not all dependecies are listed
  Would it be possible to add pandas (and numpy) to the list of dependencies? They're both imported in various places but not listed. This occasionally causes problems for packages importing plotly, since `pip` may not install all dependencies.
  
  Xref: https://github.com/deeptools/deepTools/issues/669
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `plotly/figure_factory/__init__.py`
  Content:
  ```
  1 from __future__ import absolute_import
  2 
  3 # Require that numpy exists for figure_factory
  4 import numpy
  5 
  6 from plotly.figure_factory._2d_density import create_2d_density
  7 from plotly.figure_factory._annotated_heatmap import create_annotated_heatmap
  8 from plotly.figure_factory._bullet import create_bullet
  9 from plotly.figure_factory._candlestick import create_candlestick
  10 from plotly.figure_factory._dendrogram import create_dendrogram
  11 from plotly.figure_factory._distplot import create_distplot
  12 from plotly.figure_factory._facet_grid import create_facet_grid
  13 from plotly.figure_factory._gantt import create_gantt
  14 from plotly.figure_factory._ohlc import create_ohlc
  15 from plotly.figure_factory._quiver import create_quiver
  16 from plotly.figure_factory._scatterplot import create_scatterplotmatrix
  17 from plotly.figure_factory._streamline import create_streamline
  18 from plotly.figure_factory._table import create_table
  19 from plotly.figure_factory._trisurf import create_trisurf
  20 from plotly.figure_factory._violin import create_violin
  21 from plotly.figure_factory._county_choropleth import create_choropleth
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/plotly/figure_factory/__init__.py b/plotly/figure_factory/__init__.py
  --- a/plotly/figure_factory/__init__.py
  +++ b/plotly/figure_factory/__init__.py
  @@ -1,5 +1,7 @@
   from __future__ import absolute_import
   
  +from plotly import optional_imports
  +
   # Require that numpy exists for figure_factory
   import numpy
   
  @@ -18,4 +20,5 @@
   from plotly.figure_factory._table import create_table
   from plotly.figure_factory._trisurf import create_trisurf
   from plotly.figure_factory._violin import create_violin
  -from plotly.figure_factory._county_choropleth import create_choropleth
  \ No newline at end of file
  +if optional_imports.get_module('pandas') is not None:
  +    from plotly.figure_factory._county_choropleth import create_choropleth
  
verification_info: {"golden_diff": "diff --git a/plotly/figure_factory/__init__.py b/plotly/figure_factory/__init__.py\n--- a/plotly/figure_factory/__init__.py\n+++ b/plotly/figure_factory/__init__.py\n@@ -1,5 +1,7 @@\n from __future__ import absolute_import\n \n+from plotly import optional_imports\n+\n # Require that numpy exists for figure_factory\n import numpy\n \n@@ -18,4 +20,5 @@\n from plotly.figure_factory._table import create_table\n from plotly.figure_factory._trisurf import create_trisurf\n from plotly.figure_factory._violin import create_violin\n-from plotly.figure_factory._county_choropleth import create_choropleth\n\\ No newline at end of file\n+if optional_imports.get_module('pandas') is not None:\n+    from plotly.figure_factory._county_choropleth import create_choropleth\n", "issue": "Not all dependecies are listed\nWould it be possible to add pandas (and numpy) to the list of dependencies? They're both imported in various places but not listed. This occasionally causes problems for packages importing plotly, since `pip` may not install all dependencies.\r\n\r\nXref: https://github.com/deeptools/deepTools/issues/669\nNot all dependecies are listed\nWould it be possible to add pandas (and numpy) to the list of dependencies? They're both imported in various places but not listed. This occasionally causes problems for packages importing plotly, since `pip` may not install all dependencies.\r\n\r\nXref: https://github.com/deeptools/deepTools/issues/669\n", "before_files": [{"content": "from __future__ import absolute_import\n\n# Require that numpy exists for figure_factory\nimport numpy\n\nfrom plotly.figure_factory._2d_density import create_2d_density\nfrom plotly.figure_factory._annotated_heatmap import create_annotated_heatmap\nfrom plotly.figure_factory._bullet import create_bullet\nfrom plotly.figure_factory._candlestick import create_candlestick\nfrom plotly.figure_factory._dendrogram import create_dendrogram\nfrom plotly.figure_factory._distplot import create_distplot\nfrom plotly.figure_factory._facet_grid import create_facet_grid\nfrom plotly.figure_factory._gantt import create_gantt\nfrom plotly.figure_factory._ohlc import create_ohlc\nfrom plotly.figure_factory._quiver import create_quiver\nfrom plotly.figure_factory._scatterplot import create_scatterplotmatrix\nfrom plotly.figure_factory._streamline import create_streamline\nfrom plotly.figure_factory._table import create_table\nfrom plotly.figure_factory._trisurf import create_trisurf\nfrom plotly.figure_factory._violin import create_violin\nfrom plotly.figure_factory._county_choropleth import create_choropleth", "path": "plotly/figure_factory/__init__.py"}], "after_files": [{"content": "from __future__ import absolute_import\n\nfrom plotly import optional_imports\n\n# Require that numpy exists for figure_factory\nimport numpy\n\nfrom plotly.figure_factory._2d_density import create_2d_density\nfrom plotly.figure_factory._annotated_heatmap import create_annotated_heatmap\nfrom plotly.figure_factory._bullet import create_bullet\nfrom plotly.figure_factory._candlestick import create_candlestick\nfrom plotly.figure_factory._dendrogram import create_dendrogram\nfrom plotly.figure_factory._distplot import create_distplot\nfrom plotly.figure_factory._facet_grid import create_facet_grid\nfrom plotly.figure_factory._gantt import create_gantt\nfrom plotly.figure_factory._ohlc import create_ohlc\nfrom plotly.figure_factory._quiver import create_quiver\nfrom plotly.figure_factory._scatterplot import create_scatterplotmatrix\nfrom plotly.figure_factory._streamline import create_streamline\nfrom plotly.figure_factory._table import create_table\nfrom plotly.figure_factory._trisurf import create_trisurf\nfrom plotly.figure_factory._violin import create_violin\nif optional_imports.get_module('pandas') is not None:\n    from plotly.figure_factory._county_choropleth import create_choropleth\n", "path": "plotly/figure_factory/__init__.py"}]}