Update crawl_google_scholar_citation.py (#11655)

* Update crawl_google_scholar_citation.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Improve docstring clarity in crawl_google_scholar_citation.py

Updated the docstring for clarity and fixed formatting issues.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

Author: 3 people

web_programming/crawl_google_scholar_citation.py

@@ -1,6 +1,6 @@
 """
-Get the citation from google scholar
-using title and year of publication, and volume and pages of journal.
+Get the citation from Google Scholar using the title and year of publication, and the
+journal volume and pages.
 """
 
 # /// script
@@ -17,17 +17,29 @@
 
 def get_citation(base_url: str, params: dict) -> str:
     """
-    Return the citation number.
+    Returns the citation number for a publication based on its title, journal, volume,
+    pages, and year of publication.
+
+    Parameters:
+    - base_url: The base URL for making requests to Google Scholar.
+    - params: A dictionary containing the publication information.
+
+    Returns:
+    - A string containing the number of citations.
     """
+    # Send a GET request to the URL with the specified parameters
     soup = BeautifulSoup(
         httpx2.get(base_url, params=params, timeout=10).content, "html.parser"
     )
+    # Find the div element with class 'gs_ri' that contains citation information
     div = soup.find("div", attrs={"class": "gs_ri"})
+    # Find all links in the div and retrieve the third link (the citation count)
     anchors = div.find("div", attrs={"class": "gs_fl"}).find_all("a")
-    return anchors[2].get_text()
+    return anchors[2].get_text()  # Return the text from the third link
 
 
 if __name__ == "__main__":
+    # Define parameters for the publication whose citation is to be searched
     params = {
         "title": (
             "Precisely geometry controlled microsupercapacitors for ultrahigh areal "
@@ -37,6 +49,7 @@ def get_citation(base_url: str, params: dict) -> str:
         "volume": 30,
         "pages": "3979-3990",
         "year": 2018,
-        "hl": "en",
+        "hl": "en",  # Language to be used (English)
     }
+    # Call the get_citation function with the specified URL and parameters
     print(get_citation("https://scholar.google.com/scholar_lookup", params=params))