pass figure_formats as a set (microsoft#9425)

Author: IanMatthewHuff

news/2 Fixes/9420.md

@@ -0,0 +1 @@
+Fix the Data Science "Enable Plot Viewer" setting to pass figure_formats correctly when turned off.

src/client/datascience/constants.ts

@@ -326,10 +326,10 @@ export namespace CodeSnippits {
  export const ChangeDirectory = ['{0}', '{1}', 'import os', 'try:', "\tos.chdir(os.path.join(os.getcwd(), '{2}'))", '\tprint(os.getcwd())', 'except:', '\tpass', ''];
  export const ChangeDirectoryCommentIdentifier = '# ms-python.python added'; // Not translated so can compare.
  export const ImportIPython = '{0}\nfrom IPython import get_ipython\n\n{1}';
- export const MatplotLibInitSvg = `import matplotlib\n%matplotlib inline\n${Identifiers.MatplotLibDefaultParams} = dict(matplotlib.rcParams)\n%config InlineBackend.figure_formats = 'svg', 'png'`;
- export const MatplotLibInitPng = `import matplotlib\n%matplotlib inline\n${Identifiers.MatplotLibDefaultParams} = dict(matplotlib.rcParams)\n%config InlineBackend.figure_formats = 'png'`;
- export const ConfigSvg = `%config InlineBackend.figure_formats = 'svg', 'png'`;
- export const ConfigPng = `%config InlineBackend.figure_formats = 'png'`;
+ export const MatplotLibInitSvg = `import matplotlib\n%matplotlib inline\n${Identifiers.MatplotLibDefaultParams} = dict(matplotlib.rcParams)\n%config InlineBackend.figure_formats = {'svg', 'png'}`;
+ export const MatplotLibInitPng = `import matplotlib\n%matplotlib inline\n${Identifiers.MatplotLibDefaultParams} = dict(matplotlib.rcParams)\n%config InlineBackend.figure_formats = {'png'}`;
+ export const ConfigSvg = `%config InlineBackend.figure_formats = {'svg', 'png'}`;
+ export const ConfigPng = `%config InlineBackend.figure_formats = {'png'}`;
 }
 
 export enum JupyterCommands {