update pretext version and refresh some files

.devcontainer/devcontainer.json

@@ -0,0 +1,57 @@
+{
+  "name": "PreTeXt-Codespaces",
+
+  // This Docker image includes some LaTeX support, but is still not to large.  Note that if you keep your codespace running, it will use up your GitHub free storage quota.  Additional options are listed below.
+  // "image": "oscarlevin/pretext:small",
+  // If you need to generate more complicated assets (such as sageplots) or use additional fonts when building to PDF, comment out the above line and uncomment the following line.
+  "image": "oscarlevin/pretext:full",
+  // If you only intend to build for web and don't have any latex-image generated assets, you can use a smaller image:
+  // "image": "oscarlevin/pretext:lite",
+
+
+
+  // The following was the previous version of this file, which used the Codespaces base image.  It is still available for reference, but is not recommended.
+  // "image": "mcr.microsoft.com/devcontainers/python:3",
+  // "features": {
+  //   "ghcr.io/devcontainers/features/node:1": {},
+  //   "ghcr.io/rocker-org/devcontainer-features/pandoc:1": {}
+  // },
+  // "forwardPorts": [
+  // 	27377,
+  // 	27378
+  // ],
+  // "portsAttributes": {
+  // 	"27378": {
+  // 		"label": "CodeChat",
+  // 		"onAutoForward": "openPreview",
+  // 		"requireLocalPort": true,
+  // 		"elevateIfNeeded": true,
+  // 		"protocol": "https"
+  // 	}
+  // },
+  // "onCreateCommand": "pip install pretext",
+  // // Use 'postCreateCommand' to run commands after the container is created.
+  // "postCreateCommand": "sudo bash ./.devcontainer/postCreateCommand.sh",
+
+  // Configure tool-specific properties.
+  "customizations": {
+    "codespaces": {
+      "openFiles": [
+        "source/main.ptx"
+      ]
+    },
+    "vscode": {
+      "settings": {
+        "editor.quickSuggestions": {
+          "other": "off"
+        },
+        "editor.snippetSuggestions": "top",
+        "xml.validation.enabled": false
+      },
+      "extensions": ["ms-vscode.live-server", "oscarlevin.pretext-tools"]
+    }
+  }
+
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
+}

.gitignore

@@ -1,23 +1,91 @@
-__pycache__/
-build_info
-build
-published
-.idea
-.idea/*
-pavement.pyc
-# for builds on Mac:
-**/.DS_Store
-.vscode
-*~
-*.bak
-*.orig
-\#*\#
-sphinx-enki-info.txt
-sphinx_settings.json
-output.log
-beta
+# Boilerplate list of files in a PreTeXt project for git to ignore
+# ensure this file is tracked
+!.gitignore
+
+# don't track unpublished builds
 output
-published
-pdf
-GenFigs
-cli.log
+
+# don't track assets generated from source
+generated-assets
+
+# don't track node packages
+node_modules
+
+# don't track error logs
+.error_schema.log
+cli.log
+
+# don't track OS related files (windows/macos/linux)
+.DS_Store
+.DS_Store?
+._*
+.AppleDouble
+.LSOverride
+.Spotlight-V100
+.Trashes
+Icon
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+*.stackdump
+*.lnk
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+[Dd]esktop.ini
+.directory
+.fuse_hidden*
+.Trash-*
+.nfs*
+
+# Don't include VSCode generated files
+.vscode
+*.code-workspace
+
+# Don't inlucde SublimeText files
+# Cache files for Sublime Text
+*.tmlanguage.cache
+*.tmPreferences.cache
+*.stTheme.cache
+
+# Workspace files are user-specific
+*.sublime-workspace
+
+# Project files should be checked into the repository, unless a significant
+# proportion of contributors will probably not be using Sublime Text
+*.sublime-project
+
+# SFTP configuration file
+sftp-config.json
+sftp-config-alt*.json
+
+# Package control specific files
+Package Control.last-run
+Package Control.ca-list
+Package Control.ca-bundle
+Package Control.system-ca-bundle
+Package Control.cache/
+Package Control.ca-certs/
+Package Control.merged-ca-bundle
+Package Control.user-ca-bundle
+oscrypto-ca-bundle.crt
+bh_unicode_properties.cache
+
+# Sublime-github package stores a github token in this file
+# https://packagecontrol.io/packages/sublime-github
+GitHub.sublime-settings
+
+
+# Don't include Dropbox settings and caches
+.dropbox
+.dropbox.attr
+.dropbox.cache
+

pretext/ClassesBasics/UserDefinedClasses.ptx

@@ -166,33 +166,33 @@ print(x, y)
         <statement>
           <p>True True</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     Look closely at how the objects are instantiated.
-        </feedback>
+        </p></feedback>
       </choice>
       <choice>
         <statement>
           <p>True False</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     Look closely at how the objects are instantiated and the types of the objects.
-        </feedback>
+        </p></feedback>
       </choice>
       <choice correct="yes">
         <statement>
           <p>False True</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     Correct, the BMW object is not the Tesla object but they are of the same type.
-        </feedback>
+        </p></feedback>
       </choice>
       <choice>
         <statement>
           <p>False False</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     Look closer at types of the objects.
-        </feedback>
+        </p></feedback>
       </choice>
     </choices>
   </exercise>

pretext/Debugging/HowtoAvoidDebugging.ptx

@@ -75,25 +75,25 @@ print(final_time)
         <statement>
           <p>Python is stupid and does not know how to add properly.</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     No, Python is probabaly not broken.
-                </feedback>
+                </p></feedback>
       </choice>
       <choice>
         <statement>
           <p>There is nothing wrong here.</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     No, try adding the two numbers together yourself, you will definitely get a different result.
-                </feedback>
+                </p></feedback>
       </choice>
       <choice correct="yes">
         <statement>
           <p>Python is doing string concatenation, not integer addition.</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     Yes!  Remember that input returns a string.  Now we will need to convert the string to an integer
-                </feedback>
+                </p></feedback>
       </choice>
     </choices>
   </exercise>

pretext/Debugging/KnowyourerrorMessages.ptx

@@ -44,25 +44,25 @@ print(final_time_int)
           <statement>
             <p>You cannot use a variable on both the left and right hand sides of an assignment statement.</p>
           </statement>
-          <feedback>
+          <feedback><p>
                     No, You can, as long as all the variables on the right hand side already have values.
-          </feedback>
+          </p></feedback>
         </choice>
         <choice correct="yes">
           <statement>
             <p>wait_time_int does not have a value so it cannot be used on the right hand side.</p>
           </statement>
-          <feedback>
+          <feedback><p>
                     Yes.  Variables must already have values in order to be used on the right hand side.
-          </feedback>
+          </p></feedback>
         </choice>
         <choice>
           <statement>
             <p>This is not really an error, Python is broken.</p>
           </statement>
-          <feedback>
+          <feedback><p>
                     No, No, No!
-          </feedback>
+          </p></feedback>
         </choice>
       </choices>
     </exercise>

pretext/Dictionaries/Aliasingandcopying.ptx

@@ -45,33 +45,33 @@ print(mydict["elephant"])
         <statement>
           <p>23</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     mydict and yourdict are both names for the same dictionary.
-                </feedback>
+                </p></feedback>
       </choice>
       <choice>
         <statement>
           <p>None</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     The dictionary is mutable so changes can be made to the keys and values.
-                </feedback>
+                </p></feedback>
       </choice>
       <choice correct="yes">
         <statement>
           <p>999</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     Yes, since yourdict is an alias for mydict, the value for the key elephant has been changed.
-                </feedback>
+                </p></feedback>
       </choice>
       <choice>
         <statement>
           <p>Error, there are two different keys named elephant.</p>
         </statement>
-        <feedback>
+        <feedback><p>
                     There is only one dictionary with only one key named elephant.  The dictionary has two different names, mydict and yourdict.
-                </feedback>
+                </p></feedback>
       </choice>
     </choices>
   </exercise>