Fix Azure issues

https://developercommunity.visualstudio.com/content/problem/598264/known-issue-azure-pipelines-images-missing-sqlite3.html

azure-pipelines.yml

@@ -24,15 +24,48 @@ jobs:
     maxParallel: 4
 
   steps:
+  - script: |
+      # Make sure all packages are pulled from latest
+      sudo apt-get update
+
+      # Fail out if any setups fail
+      set -e
+
+      # Delete old Pythons
+      rm -rf $AGENT_TOOLSDIRECTORY/Python/2.7.16
+      rm -rf $AGENT_TOOLSDIRECTORY/Python/3.5.7
+      rm -rf $AGENT_TOOLSDIRECTORY/Python/3.7.3
+
+      # Download new Pythons
+      azcopy --recursive \
+        --source https://vstsagenttools.blob.core.windows.net/tools/hostedtoolcache/linux/Python/2.7.15 \
+        --destination $AGENT_TOOLSDIRECTORY/Python/2.7.15
+
+      azcopy --recursive \
+        --source https://vstsagenttools.blob.core.windows.net/tools/hostedtoolcache/linux/Python/3.5.5 \
+        --destination $AGENT_TOOLSDIRECTORY/Python/3.5.5
+
+      azcopy --recursive \
+        --source https://vstsagenttools.blob.core.windows.net/tools/hostedtoolcache/linux/Python/3.7.2 \
+        --destination $AGENT_TOOLSDIRECTORY/Python/3.7.2
+
+      # Install new Pythons
+      original_directory=$PWD
+      setups=$(find $AGENT_TOOLSDIRECTORY/Python -name setup.sh)
+      for setup in $setups; do
+          chmod +x $setup;
+          cd $(dirname $setup);
+          ./$(basename $setup);
+          cd $original_directory;
+      done;
+    displayName: 'Workaround: update apt and roll back Python versions'
+  
   - task: UsePythonVersion@0
     inputs:
       versionSpec: '$(python.version)'
       architecture: 'x64'
 
-  - script: |
-      sudo apt-get update
-      sudo apt-get install python${python.version}
-      python -m pip install --upgrade pip
+  - script: python -m pip install --upgrade pip
     displayName: 'Install dependencies'
 
   - script: sudo apt-get install ffmpeg