diff --git a/manifests/stackless/stackless/3.7.5.yaml b/manifests/stackless/stackless/3.7.5.yaml
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+# ================== General ==================
+Id: stackless.stackless
+Publisher: stackless
+Name: stackless
+Author: stackless
+Description: Stackless Python is an enhanced version of the Python programming language. It allows programmers to reap the benefits of thread-based programming without the performance and complexity problems associated with conventional threads.
+#AppMoniker: 
+Tags: stackless,python,develop,script,programming language
+FileExtensions: py
+#Protocols: 
+#Commands:
+
+# ================== License ==================
+Homepage: https://github.com/stackless-dev/stackless
+License: PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
+LicenseUrl: https://github.com/stackless-dev/stackless/blob/master-slp/LICENSE
+
+# ================= Installer =================
+Version: 3.7.5
+InstallerType: exe
+Installers:
+  - Arch: x64
+    Url: http://www.stackless.com/binaries/MSI/3.7.5/stackless-3.7.5-amd64.exe
+    Sha256: 7eb3de704c7a5e48ac7bd482a49ef60dc5ead7cf52d7099d908b13d9259b9068
+    Switches:
+      Silent: /passive
+      SilentWithProgress: /passive 
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