Publish Canary

- vercel@23.1.3-canary.38
 - vercel-plugin-python@1.0.0-canary.6
 - @vercel/python@2.0.6-canary.7

.github/workflows/cancel.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 2
     steps:
-      - uses: styfle/cancel-workflow-action@0.4.1
+      - uses: styfle/cancel-workflow-action@0.9.1
         with:
           workflow_id: 849295, 849296, 849297, 849298
           access_token: ${{ github.token }}

DEVELOPING_A_RUNTIME.md

@@ -332,7 +332,7 @@ This is an abstract enumeration type that is implemented by one of the following
 - `nodejs10.x`
 - `go1.x`
 - `java11`
-- `python3.8`
+- `python3.9`
 - `python3.6`
 - `dotnetcore2.1`
 - `ruby2.5`
@@ -398,12 +398,12 @@ This utility allows you to _scan_ the filesystem and return a [`Files`](#files)
 The following trivial example downloads everything to the filesystem, only to return it back (therefore just re-creating the passed-in [`Files`](#files)):
 
 ```js
-const { glob, download } = require('@vercel/build-utils')
+const { glob, download } = require('@vercel/build-utils');
 
 exports.build = ({ files, workPath }) => {
-  await download(files, workPath)
+  await download(files, workPath);
-  return glob('**', workPath)
+  return glob('**', workPath);
-}
+};
 ```
 
 ### `getWritableDirectory()`

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vercel",
-  "version": "23.1.3-canary.36",
+  "version": "23.1.3-canary.38",
   "preferGlobal": true,
   "license": "Apache-2.0",
   "description": "The command-line interface for Vercel",
@@ -46,7 +46,7 @@
     "@vercel/build-utils": "2.12.3-canary.20",
     "@vercel/go": "1.2.4-canary.4",
     "@vercel/node": "1.12.2-canary.7",
-    "@vercel/python": "2.0.6-canary.6",
+    "@vercel/python": "2.0.6-canary.7",
     "@vercel/ruby": "1.2.8-canary.4",
     "update-notifier": "4.1.0",
     "vercel-plugin-middleware": "0.0.0-canary.7",

packages/cli/src/commands/build.ts

@@ -687,7 +687,7 @@ async function linkOrCopy(existingPath: string, newPath: string) {
         overwrite: true,
       });
     } else {
-      await fs.createSymlink(existingPath, newPath, 'file');
+      await fs.createLink(existingPath, newPath);
     }
   } catch (err: any) {
     // eslint-disable-line

packages/plugin-python/package.json

@@ -1,7 +1,7 @@
 {
   "private": false,
   "name": "vercel-plugin-python",
-  "version": "1.0.0-canary.5",
+  "version": "1.0.0-canary.6",
   "main": "dist/index.js",
   "license": "MIT",
   "files": [
@@ -18,7 +18,7 @@
   },
   "dependencies": {
     "@vercel/build-utils": "2.12.3-canary.20",
-    "@vercel/python": "2.0.6-canary.6"
+    "@vercel/python": "2.0.6-canary.7"
   },
   "devDependencies": {
     "@types/node": "*",

packages/python/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/python",
-  "version": "2.0.6-canary.6",
+  "version": "2.0.6-canary.7",
   "main": "./dist/index.js",
   "license": "MIT",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/python",

packages/python/src/index.ts

@@ -114,10 +114,24 @@ export const build = async ({
     try {
       const json = await readFile(join(pipfileLockDir, 'Pipfile.lock'), 'utf8');
       const obj = JSON.parse(json);
-      if (!meta.isDev && obj?._meta?.requires?.python_version === '3.6') {
+      const version = obj?._meta?.requires?.python_version;
+      if (!meta.isDev) {
+        if (version === '3.6') {
           pipPath = 'pip3.6';
           pythonPath = 'python3.6';
           pythonRuntime = 'python3.6';
+          console.warn(
+            `Warning: Python version "${version}" detected in Pipfile.lock will reach End-Of-Life December 2021. Please upgrade. http://vercel.link/python-version`
+          );
+        } else if (version === '3.9') {
+          pipPath = 'pip3.9';
+          pythonPath = 'python3.9';
+          pythonRuntime = 'python3.9';
+        } else {
+          console.warn(
+            `Warning: Invalid Python version "${version}" detected in Pipfile.lock will be ignored. http://vercel.link/python-version`
+          );
+        }
       }
     } catch (err) {
       throw new NowBuildError({

packages/python/test/fixtures/02-wsgi-pipenv/now.json

@@ -1,5 +0,0 @@
-{
-  "version": 2,
-  "builds": [{ "src": "index.py", "use": "@vercel/python" }],
-  "probes": [{ "path": "/", "mustContain": "wsgi:RANDOMNESS_PLACEHOLDER" }]
-}

packages/python/test/fixtures/02-wsgi-pipenv/vercel.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [{ "src": "index.py", "use": "@vercel/python" }],
+  "probes": [
+    {
+      "path": "/",
+      "mustContain": "wsgi:RANDOMNESS_PLACEHOLDER",
+      "logMustContain": "Warning: Python version \"3.6\" detected in Pipfile.lock will reach End-Of-Life December 2021. Please upgrade."
+    }
+  ]
+}

packages/python/test/fixtures/03-env-vars/now.json

@@ -1,8 +0,0 @@
-{
-  "version": 2,
-  "builds": [{ "src": "index.py", "use": "@vercel/python" }],
-  "env": {
-    "RANDOMNESS": "RANDOMNESS_PLACEHOLDER"
-  },
-  "probes": [{ "path": "/", "mustContain": "RANDOMNESS_PLACEHOLDER:env" }]
-}

packages/python/test/fixtures/03-env-vars/vercel.json

@@ -0,0 +1,14 @@
+{
+  "version": 2,
+  "builds": [{ "src": "index.py", "use": "@vercel/python" }],
+  "env": {
+    "RANDOMNESS": "RANDOMNESS_PLACEHOLDER"
+  },
+  "probes": [
+    {
+      "path": "/",
+      "mustContain": "RANDOMNESS_PLACEHOLDER:env",
+      "logMustContain": "Warning: Python version \"3.6\" detected in Pipfile.lock will reach End-Of-Life December 2021. Please upgrade."
+    }
+  ]
+}

packages/python/test/fixtures/04-cowsay-pipfile/now.json

@@ -1,5 +0,0 @@
-{
-  "version": 2,
-  "builds": [{ "src": "**/**.py", "use": "@vercel/python" }],
-  "probes": [{ "path": "/", "mustContain": "pip:RANDOMNESS_PLACEHOLDER" }]
-}

packages/python/test/fixtures/04-cowsay-pipfile/vercel.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [{ "src": "**/**.py", "use": "@vercel/python" }],
+  "probes": [
+    {
+      "path": "/",
+      "mustContain": "pip:RANDOMNESS_PLACEHOLDER",
+      "logMustContain": "Warning: Invalid Python version \"3.7\" detected in Pipfile.lock will be ignored."
+    }
+  ]
+}