fix(ScreenshotScraper): impose dynamic imports

Author: f-aguzzi

scrapegraphai/utils/screenshot_scraping/screenshot_preparation.py

@@ -5,7 +5,6 @@
 from io import BytesIO
 from PIL import Image, ImageGrab
 from playwright.async_api import async_playwright
-import cv2 as cv
 import numpy as np
 from io import BytesIO
 
@@ -42,6 +41,12 @@ def select_area_with_opencv(image):
         A tuple containing the LEFT, TOP, RIGHT, and BOTTOM coordinates of the selected area.
     """
 
+    try:
+        import cv2 as cv
+    except ImportError:
+        raise ImportError("The dependencies for screenshot scraping are not installed. Please install them using `pip install scrapegraphai[screenshot_scraper]`.")
+
+
     fullscreen_screenshot = ImageGrab.grab()
     dw, dh = fullscreen_screenshot.size
 
@@ -116,8 +121,12 @@ def select_area_with_ipywidget(image):
 
     import matplotlib.pyplot as plt
     import numpy as np
-    from ipywidgets import interact, IntSlider
-    import ipywidgets as widgets
+    try:
+        from ipywidgets import interact, IntSlider
+        import ipywidgets as widgets
+    except:
+        raise ImportError("The dependencies for screenshot scraping are not installed. Please install them using `pip install scrapegraphai[screenshot_scraper]`.")
+
     from PIL import Image
 
     img_array = np.array(image)

scrapegraphai/utils/screenshot_scraping/text_detection.py

@@ -1,24 +1,29 @@
 """
 text_detection_module
 """
-from surya.ocr import run_ocr
-from surya.model.detection.model import (load_model as load_det_model,
-                                         load_processor as load_det_processor)
-from surya.model.recognition.model import load_model as load_rec_model
-from surya.model.recognition.processor import load_processor as load_rec_processor
 
 
 def detect_text(image, languages: list = ["en"]):
     """
-        Detects and extracts text from a given image.
-        Parameters:
-                image (PIL Image): The input image to extract text from.
-                lahguages (list): A list of languages to detect text in. Defaults to ["en"]. List of languages can be found here: https://github.com/VikParuchuri/surya/blob/master/surya/languages.py
-        Returns:
-                str: The extracted text from the image.
-        Notes:
-                Model weights will automatically download the first time you run this function.
-        """
+    Detects and extracts text from a given image.
+    Parameters:
+            image (PIL Image): The input image to extract text from.
+            lahguages (list): A list of languages to detect text in. Defaults to ["en"]. List of languages can be found here: https://github.com/VikParuchuri/surya/blob/master/surya/languages.py
+    Returns:
+            str: The extracted text from the image.
+    Notes:
+            Model weights will automatically download the first time you run this function.
+    """
+
+    try:
+        from surya.ocr import run_ocr
+        from surya.model.detection.model import (load_model as load_det_model,
+                                                load_processor as load_det_processor)
+        from surya.model.recognition.model import load_model as load_rec_model
+        from surya.model.recognition.processor import load_processor as load_rec_processor
+    except:
+        raise ImportError("The dependencies for screenshot scraping are not installed. Please install them using `pip install scrapegraphai[screenshot_scraper]`.")
+
 
     langs = languages
     det_processor, det_model = load_det_processor(), load_det_model()