fix: surfacing content type info when running open() in python

src/targets/python/requests/client.ts

@@ -67,7 +67,12 @@ export const requests: Client<RequestsOptions> = {
         payload = {};
         postData.params.forEach(p => {
           if (p.fileName) {
-            files[p.name] = `open('${p.fileName}', 'rb')`;
+            if (p.contentType) {
+              files[p.name] = `('${p.fileName}', open('${p.fileName}', 'rb'), '${p.contentType}')`;
+            } else {
+              files[p.name] = `('${p.fileName}', open('${p.fileName}', 'rb'))`;
+            }
+
             hasFiles = true;
           } else {
             payload[p.name] = p.value;
@@ -96,7 +101,11 @@ export const requests: Client<RequestsOptions> = {
         }
 
         // The `open()` call must be a literal in the code snippet.
-        addPostProcessor(code => code.replace(/"open\('(.+)', 'rb'\)"/g, 'open("$1", "rb")'));
+        addPostProcessor(code =>
+          code
+            .replace(/"\('(.+)', open\('(.+)', 'rb'\)\)"/g, '("$1", open("$2", "rb"))')
+            .replace(/"\('(.+)', open\('(.+)', 'rb'\), '(.+)'\)"/g, '("$1", open("$2", "rb"), "$3")')
+        );
         break;
 
       default: {

src/targets/python/requests/fixtures/multipart-data.py

@@ -2,7 +2,7 @@
 
 url = "https://httpbin.org/anything"
 
-files = {"foo": open("src/fixtures/files/hello.txt", "rb")}
+files = {"foo": ("src/fixtures/files/hello.txt", open("src/fixtures/files/hello.txt", "rb"), "text/plain")}
 payload = {"bar": "Bonjour le monde"}
 
 response = requests.post(url, data=payload, files=files)

src/targets/python/requests/fixtures/multipart-file.py

@@ -2,7 +2,7 @@
 
 url = "https://httpbin.org/anything"
 
-files = {"foo": open("src/fixtures/files/hello.txt", "rb")}
+files = {"foo": ("src/fixtures/files/hello.txt", open("src/fixtures/files/hello.txt", "rb"), "text/plain")}
 
 response = requests.post(url, files=files)