remove locks, move init code to __init__

modules/api/api.py

@@ -251,8 +251,21 @@ class Api:
         self.default_script_arg_txt2img = []
         self.default_script_arg_img2img = []
 
-        self.txt2img_script_arg_init_lock = Lock()
-        self.img2img_script_arg_init_lock = Lock()
+        txt2img_script_runner = scripts.scripts_txt2img
+        img2img_script_runner = scripts.scripts_img2img
+
+        if not txt2img_script_runner.scripts or not img2img_script_runner.scripts:
+            ui.create_ui()
+
+        if not txt2img_script_runner.scripts:
+            txt2img_script_runner.initialize_scripts(False)
+        if not self.default_script_arg_txt2img:
+            self.default_script_arg_txt2img = self.init_default_script_args(txt2img_script_runner)
+
+        if not img2img_script_runner.scripts:
+            img2img_script_runner.initialize_scripts(True)
+        if not self.default_script_arg_img2img:
+            self.default_script_arg_img2img = self.init_default_script_args(img2img_script_runner)
 
 
 
@@ -418,16 +431,10 @@ class Api:
         task_id = txt2imgreq.force_task_id or create_task_id("txt2img")
 
         script_runner = scripts.scripts_txt2img
-        with self.txt2img_script_arg_init_lock:
-            if not script_runner.scripts:
-                script_runner.initialize_scripts(False)
-                ui.create_ui()
 
-            infotext_script_args = {}
-            self.apply_infotext(txt2imgreq, "txt2img", script_runner=script_runner, mentioned_script_args=infotext_script_args)
+        infotext_script_args = {}
+        self.apply_infotext(txt2imgreq, "txt2img", script_runner=script_runner, mentioned_script_args=infotext_script_args)
 
-            if not self.default_script_arg_txt2img:
-                self.default_script_arg_txt2img = self.init_default_script_args(script_runner)
         selectable_scripts, selectable_script_idx = self.get_selectable_script(txt2imgreq.script_name, script_runner)
 
         populate = txt2imgreq.copy(update={  # Override __init__ params
@@ -488,16 +495,10 @@ class Api:
             mask = decode_base64_to_image(mask)
 
         script_runner = scripts.scripts_img2img
-        with self.img2img_script_arg_init_lock:
-            if not script_runner.scripts:
-                script_runner.initialize_scripts(True)
-                ui.create_ui()
 
-            infotext_script_args = {}
-            self.apply_infotext(img2imgreq, "img2img", script_runner=script_runner, mentioned_script_args=infotext_script_args)
+        infotext_script_args = {}
+        self.apply_infotext(img2imgreq, "img2img", script_runner=script_runner, mentioned_script_args=infotext_script_args)
 
-            if not self.default_script_arg_img2img:
-                self.default_script_arg_img2img = self.init_default_script_args(script_runner)
         selectable_scripts, selectable_script_idx = self.get_selectable_script(img2imgreq.script_name, script_runner)
 
         populate = img2imgreq.copy(update={  # Override __init__ params