Implemented a terminate function

Terminates the child process and calls the end callback

Author: brucedjones

index.js

@@ -245,4 +245,15 @@ PythonShell.prototype.end = function (callback) {
     return this;
 };
 
+/**
+ * Closes the stdin stream, which should cause the process to finish its work and close
+ * @returns {PythonShell} The same instance for chaining calls
+ */
+PythonShell.prototype.terminate = function () {
+    this.childProcess.kill();
+    this.terminated = true;
+    this._endCallback && this._endCallback();
+    return this;
+};
+
 module.exports = PythonShell;

test/python/infinite_loop.py

@@ -0,0 +1,3 @@
+a = 0
+while(True):
+    a += 1

test/test-python-shell.js

@@ -287,4 +287,23 @@ describe('PythonShell', function () {
             });
         });
     });
+
+    describe('.terminate()', function () {
+        it('set terminated to true', function (done) {
+            var pyshell = new PythonShell('infinite_loop.py');
+            pyshell.terminate();
+            pyshell.terminated.should.be.true;
+            done();
+        });
+        it('run the end callback if specified', function (done) {
+            var pyshell = new PythonShell('infinite_loop.py');
+            var endCalled = false;
+            pyshell.end(()=>{
+                endCalled = true;
+            })
+            pyshell.terminate();
+            endCalled.should.be.true;
+            done();
+        });
+    });
 });