diff --git a/sdkcompat/v193/BUILD b/sdkcompat/v193/BUILD
index 9f556f62e58..2a5f9dae648 100644
--- a/sdkcompat/v193/BUILD
+++ b/sdkcompat/v193/BUILD
@@ -9,6 +9,7 @@ java_library(
     srcs = glob([
         "com/google/idea/sdkcompat/general/**",
         "com/google/idea/sdkcompat/platform/**",
+        "com/google/idea/sdkcompat/python/**",
     ]) + select_for_ide(
         android_studio = glob([
             "com/google/idea/sdkcompat/cpp/**",
@@ -31,6 +32,7 @@ java_library(
     deps = [
         "//intellij_platform_sdk:jsr305",
         "//intellij_platform_sdk:plugin_api",
+        "//third_party/python",
         "//third_party/scala",
     ],
 )
diff --git a/sdkcompat/v193/com/google/idea/sdkcompat/python/FunctionParsingCompat.java b/sdkcompat/v193/com/google/idea/sdkcompat/python/FunctionParsingCompat.java
new file mode 100644
index 00000000000..b5ad812b8c0
--- /dev/null
+++ b/sdkcompat/v193/com/google/idea/sdkcompat/python/FunctionParsingCompat.java
@@ -0,0 +1,32 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiBuilder;
+import com.intellij.lang.PsiBuilder.Marker;
+import com.intellij.psi.tree.IElementType;
+import com.jetbrains.python.parsing.FunctionParsing;
+import com.jetbrains.python.parsing.ParsingContext;
+
+/** #api201: Compat class for {@link FunctionParsing}. */
+public class FunctionParsingCompat extends FunctionParsing {
+
+  public FunctionParsingCompat(ParsingContext context) {
+    super(context);
+  }
+
+  protected MarkerCompat getMarker() {
+    return new MarkerCompat(myBuilder.mark());
+  }
+
+  /** #api201: Compat class for marker which is represented by a new interface in 2020.2. */
+  protected static class MarkerCompat {
+    private final PsiBuilder.Marker marker;
+
+    private MarkerCompat(Marker marker) {
+      this.marker = marker;
+    }
+
+    public void done(IElementType type) {
+      marker.done(type);
+    }
+  }
+}
diff --git a/sdkcompat/v193/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java b/sdkcompat/v193/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java
new file mode 100644
index 00000000000..ae1a05827b3
--- /dev/null
+++ b/sdkcompat/v193/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java
@@ -0,0 +1,33 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiBuilder;
+import com.intellij.lang.PsiParser;
+import com.intellij.openapi.project.Project;
+import com.jetbrains.python.PythonParserDefinition;
+import com.jetbrains.python.parsing.ParsingContext;
+import com.jetbrains.python.parsing.PyParser;
+import com.jetbrains.python.parsing.StatementParsing;
+import com.jetbrains.python.psi.LanguageLevel;
+
+/** Compat class for {@link PythonParserDefinition}. #api201 */
+public abstract class PythonParserDefinitionCompat extends PythonParserDefinition {
+
+  protected abstract ParsingContext createCustomParsingContext(
+      Project project,
+      SyntaxTreeBuilderCompat builderCompat,
+      LanguageLevel languageLevel,
+      StatementParsing.FUTURE futureFlag);
+
+  @Override
+  public PsiParser createParser(Project project) {
+    return new PyParser() {
+      /** #api201: Super method uses new interface SyntaxTreeBuilder in 2020.2 */
+      @Override
+      protected ParsingContext createParsingContext(
+          PsiBuilder builder, LanguageLevel languageLevel, StatementParsing.FUTURE futureFlag) {
+        return createCustomParsingContext(
+            project, new SyntaxTreeBuilderCompat(builder), languageLevel, futureFlag);
+      }
+    };
+  }
+}
diff --git a/sdkcompat/v193/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java b/sdkcompat/v193/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java
new file mode 100644
index 00000000000..a7304fd2293
--- /dev/null
+++ b/sdkcompat/v193/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java
@@ -0,0 +1,20 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiBuilder;
+
+/**
+ * Compat class to support that constructor of ParsingContext uses new interface SyntaxTreeBuilder
+ * in 2020.2. #api201
+ */
+public class SyntaxTreeBuilderCompat {
+
+  private final PsiBuilder builder;
+
+  public SyntaxTreeBuilderCompat(PsiBuilder builder) {
+    this.builder = builder;
+  }
+
+  public PsiBuilder getBuilder() {
+    return builder;
+  }
+}
diff --git a/sdkcompat/v201/BUILD b/sdkcompat/v201/BUILD
index c833eda1f88..88fd62f643b 100644
--- a/sdkcompat/v201/BUILD
+++ b/sdkcompat/v201/BUILD
@@ -9,6 +9,7 @@ java_library(
     srcs = glob([
         "com/google/idea/sdkcompat/general/**",
         "com/google/idea/sdkcompat/platform/**",
+        "com/google/idea/sdkcompat/python/**",
     ]) + select_for_ide(
         android_studio = glob([
             "com/google/idea/sdkcompat/cpp/**",
@@ -31,6 +32,7 @@ java_library(
     deps = [
         "//intellij_platform_sdk:jsr305",
         "//intellij_platform_sdk:plugin_api",
+        "//third_party/python",
         "//third_party/scala",
     ],
 )
diff --git a/sdkcompat/v201/com/google/idea/sdkcompat/python/FunctionParsingCompat.java b/sdkcompat/v201/com/google/idea/sdkcompat/python/FunctionParsingCompat.java
new file mode 100644
index 00000000000..b5ad812b8c0
--- /dev/null
+++ b/sdkcompat/v201/com/google/idea/sdkcompat/python/FunctionParsingCompat.java
@@ -0,0 +1,32 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiBuilder;
+import com.intellij.lang.PsiBuilder.Marker;
+import com.intellij.psi.tree.IElementType;
+import com.jetbrains.python.parsing.FunctionParsing;
+import com.jetbrains.python.parsing.ParsingContext;
+
+/** #api201: Compat class for {@link FunctionParsing}. */
+public class FunctionParsingCompat extends FunctionParsing {
+
+  public FunctionParsingCompat(ParsingContext context) {
+    super(context);
+  }
+
+  protected MarkerCompat getMarker() {
+    return new MarkerCompat(myBuilder.mark());
+  }
+
+  /** #api201: Compat class for marker which is represented by a new interface in 2020.2. */
+  protected static class MarkerCompat {
+    private final PsiBuilder.Marker marker;
+
+    private MarkerCompat(Marker marker) {
+      this.marker = marker;
+    }
+
+    public void done(IElementType type) {
+      marker.done(type);
+    }
+  }
+}
diff --git a/sdkcompat/v201/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java b/sdkcompat/v201/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java
new file mode 100644
index 00000000000..ae1a05827b3
--- /dev/null
+++ b/sdkcompat/v201/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java
@@ -0,0 +1,33 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiBuilder;
+import com.intellij.lang.PsiParser;
+import com.intellij.openapi.project.Project;
+import com.jetbrains.python.PythonParserDefinition;
+import com.jetbrains.python.parsing.ParsingContext;
+import com.jetbrains.python.parsing.PyParser;
+import com.jetbrains.python.parsing.StatementParsing;
+import com.jetbrains.python.psi.LanguageLevel;
+
+/** Compat class for {@link PythonParserDefinition}. #api201 */
+public abstract class PythonParserDefinitionCompat extends PythonParserDefinition {
+
+  protected abstract ParsingContext createCustomParsingContext(
+      Project project,
+      SyntaxTreeBuilderCompat builderCompat,
+      LanguageLevel languageLevel,
+      StatementParsing.FUTURE futureFlag);
+
+  @Override
+  public PsiParser createParser(Project project) {
+    return new PyParser() {
+      /** #api201: Super method uses new interface SyntaxTreeBuilder in 2020.2 */
+      @Override
+      protected ParsingContext createParsingContext(
+          PsiBuilder builder, LanguageLevel languageLevel, StatementParsing.FUTURE futureFlag) {
+        return createCustomParsingContext(
+            project, new SyntaxTreeBuilderCompat(builder), languageLevel, futureFlag);
+      }
+    };
+  }
+}
diff --git a/sdkcompat/v201/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java b/sdkcompat/v201/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java
new file mode 100644
index 00000000000..a7304fd2293
--- /dev/null
+++ b/sdkcompat/v201/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java
@@ -0,0 +1,20 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiBuilder;
+
+/**
+ * Compat class to support that constructor of ParsingContext uses new interface SyntaxTreeBuilder
+ * in 2020.2. #api201
+ */
+public class SyntaxTreeBuilderCompat {
+
+  private final PsiBuilder builder;
+
+  public SyntaxTreeBuilderCompat(PsiBuilder builder) {
+    this.builder = builder;
+  }
+
+  public PsiBuilder getBuilder() {
+    return builder;
+  }
+}
diff --git a/sdkcompat/v202/BUILD b/sdkcompat/v202/BUILD
index 27dce3b987a..d294a8d25c1 100644
--- a/sdkcompat/v202/BUILD
+++ b/sdkcompat/v202/BUILD
@@ -9,6 +9,7 @@ java_library(
     srcs = glob([
         "com/google/idea/sdkcompat/general/**",
         "com/google/idea/sdkcompat/platform/**",
+        "com/google/idea/sdkcompat/python/**",
     ]) + select_for_ide(
         android_studio = glob([
             "com/google/idea/sdkcompat/cpp/**",
@@ -31,6 +32,7 @@ java_library(
     deps = [
         "//intellij_platform_sdk:jsr305",
         "//intellij_platform_sdk:plugin_api",
+        "//third_party/python",
         "//third_party/scala",
     ],
 )
diff --git a/sdkcompat/v202/com/google/idea/sdkcompat/python/FunctionParsingCompat.java b/sdkcompat/v202/com/google/idea/sdkcompat/python/FunctionParsingCompat.java
new file mode 100644
index 00000000000..75100290996
--- /dev/null
+++ b/sdkcompat/v202/com/google/idea/sdkcompat/python/FunctionParsingCompat.java
@@ -0,0 +1,32 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.SyntaxTreeBuilder;
+import com.intellij.lang.SyntaxTreeBuilder.Marker;
+import com.intellij.psi.tree.IElementType;
+import com.jetbrains.python.parsing.FunctionParsing;
+import com.jetbrains.python.parsing.ParsingContext;
+
+/** #api201: Compat class for {@link FunctionParsing}. */
+public class FunctionParsingCompat extends FunctionParsing {
+
+  public FunctionParsingCompat(ParsingContext context) {
+    super(context);
+  }
+
+  protected MarkerCompat getMarker() {
+    return new MarkerCompat(myBuilder.mark());
+  }
+
+  /** #api201: Compat class for marker which is represented by a new interface in 2020.2. */
+  protected static class MarkerCompat {
+    private final SyntaxTreeBuilder.Marker marker;
+
+    private MarkerCompat(Marker marker) {
+      this.marker = marker;
+    }
+
+    public void done(IElementType type) {
+      marker.done(type);
+    }
+  }
+}
diff --git a/sdkcompat/v202/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java b/sdkcompat/v202/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java
new file mode 100644
index 00000000000..d199f261138
--- /dev/null
+++ b/sdkcompat/v202/com/google/idea/sdkcompat/python/PythonParserDefinitionCompat.java
@@ -0,0 +1,35 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.PsiParser;
+import com.intellij.lang.SyntaxTreeBuilder;
+import com.intellij.openapi.project.Project;
+import com.jetbrains.python.PythonParserDefinition;
+import com.jetbrains.python.parsing.ParsingContext;
+import com.jetbrains.python.parsing.PyParser;
+import com.jetbrains.python.parsing.StatementParsing;
+import com.jetbrains.python.psi.LanguageLevel;
+
+/** Compat class for {@link PythonParserDefinition}. #api201 */
+public abstract class PythonParserDefinitionCompat extends PythonParserDefinition {
+
+  protected abstract ParsingContext createCustomParsingContext(
+      Project project,
+      SyntaxTreeBuilderCompat builderCompat,
+      LanguageLevel languageLevel,
+      StatementParsing.FUTURE futureFlag);
+
+  @Override
+  public PsiParser createParser(Project project) {
+    return new PyParser() {
+      /** #api201: Super method uses new interface SyntaxTreeBuilder in 2020.2 */
+      @Override
+      protected ParsingContext createParsingContext(
+          SyntaxTreeBuilder builder,
+          LanguageLevel languageLevel,
+          StatementParsing.FUTURE futureFlag) {
+        return createCustomParsingContext(
+            project, new SyntaxTreeBuilderCompat(builder), languageLevel, futureFlag);
+      }
+    };
+  }
+}
diff --git a/sdkcompat/v202/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java b/sdkcompat/v202/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java
new file mode 100644
index 00000000000..56854512c40
--- /dev/null
+++ b/sdkcompat/v202/com/google/idea/sdkcompat/python/SyntaxTreeBuilderCompat.java
@@ -0,0 +1,20 @@
+package com.google.idea.sdkcompat.python;
+
+import com.intellij.lang.SyntaxTreeBuilder;
+
+/**
+ * Compat class to support that constructor of ParsingContext uses new interface SyntaxTreeBuilder
+ * in 2020.2. #api201
+ */
+public class SyntaxTreeBuilderCompat {
+
+  private final SyntaxTreeBuilder builder;
+
+  public SyntaxTreeBuilderCompat(SyntaxTreeBuilder builder) {
+    this.builder = builder;
+  }
+
+  public SyntaxTreeBuilder getBuilder() {
+    return builder;
+  }
+}