[py] Added Docstrings to By Class (SeleniumHQ#15102)

Author: shbenzer

py/selenium/webdriver/common/by.py

@@ -22,7 +22,58 @@
 
 
 class By:
-    """Set of supported locator strategies."""
+    """Set of supported locator strategies.
+
+    ID:
+    --
+    Select the element by its ID.
+
+    >>> element = driver.find_element(By.ID, 'myElement')
+
+    XPATH:
+    ------
+    Select the element via XPATH.
+        - absolute path
+        - relative path
+
+    >>> element = driver.find_element(By.XPATH, '//html/body/div')
+
+    LINK_TEXT:
+    ----------
+    Select the link element having the exact text.
+
+    >>> element = driver.find_element(By.LINK_TEXT, 'myLink')
+
+    PARTIAL_LINK_TEXT:
+    ------------------
+    Select the link element having the partial text.
+
+    >>> element = driver.find_element(By.PARTIAL_LINK_TEXT, 'my')
+
+    NAME:
+    ----
+    Select the element by its name attribute.
+
+    >>> element = driver.find_element(By.NAME, 'myElement')
+
+    TAG_NAME:
+    --------
+    Select the element by its tag name.
+
+    >>> element = driver.find_element(By.TAG_NAME, 'div')
+
+    CLASS_NAME:
+    ----------
+    Select the element by its class name.
+
+    >>> element = driver.find_element(By.CLASS_NAME, 'myElement')
+
+    CSS_SELECTOR:
+    -------------
+    Select the element by its CSS selector.
+
+    >>> element = driver.find_element(By.CSS_SELECTOR, 'div.myElement')
+    """
 
     ID = "id"
     XPATH = "xpath"