Update README.md

README.md

@@ -72,6 +72,40 @@ Contributions are welcome! If you spot an issue or have suggestions for improvem
 2. Make your changes.
 3. Submit a pull request.
 
+## Who are the source Data producers ?
+The data is machine-generated (using web scraping) and subjected to human additional treatment.
+
+below, I provide the script I created to scrape the data (as well as my additional treatment):
+
+import scrapy
+
+
+class StatesspiderSpider(scrapy.Spider):
+    name = 'statesspider'
+    start_urls = ['https://en.wikipedia.org/wiki/List_of_sovereign_states']
+
+    def parse(self, response):
+        rows = response.xpath('//table[contains(@class, "wikitable")][1]//tr')  # Locate the main table
+
+        for row in rows[1:]:  # Skip the header row
+            common_and_formal_names = row.xpath('td[1]//text()').getall()  # First column
+            membership_within_un_system = row.xpath('td[2]//text()').getall()  # Second column
+            sovereignty_dispute = row.xpath('td[3]//text()').getall()  # Third column
+            further_information = row.xpath('td[4]//text()').getall()  # Fourth column
+
+            # Clean up and join text lists
+            common_and_formal_names = ' '.join(common_and_formal_names).strip()
+            membership_within_un_system = ' '.join(membership_within_un_system).strip()
+            sovereignty_dispute = ' '.join(sovereignty_dispute).strip()
+            further_information = ' '.join(further_information).strip()
+
+            yield {
+                'Common and Formal Names': common_and_formal_names,
+                'Membership within the UN System': membership_within_un_system,
+                'Sovereignty Dispute': sovereignty_dispute,
+                'Further Information': further_information,
+            }
+
 ## Usage
 
 ### Loading the Dataset in Python