New graphs removing the backends declared less than 5 times

plot-packaging-backends.py

@@ -11,19 +11,29 @@ import sqlite3
 import matplotlib.pyplot as plt
 
 BACKEND_PATH = Path("~/Progs/python/duckdb/pyproject_backends.db")
-QUERY = "SELECT * FROM backends"
+
+QUERY_COUNT = "SELECT COUNT(*) AS nb FROM backends WHERE backend IS NOT NULL;"
+
+# QUERY = "SELECT backend, COUNT(backend) AS nb FROM backends WHERE backend IS NOT NULL GROUP BY backend;"
+
+QUERY = """SELECT backend, COUNT(backend) AS nb 
+FROM backends 
+WHERE backend IS NOT NULL 
+GROUP BY backend 
+HAVING COUNT(backend) > 5;
+"""
 
 if __name__ == "__main__":
     cnx = sqlite3.connect(f"file:{str(BACKEND_PATH.expanduser())}?mode=ro")
     cnx.row_factory = sqlite3.Row
     cur = cnx.cursor()
 
-    cur.execute("SELECT COUNT(*) AS nb FROM backends WHERE backend IS NOT NULL;")
+    cur.execute(QUERY_COUNT)
     r = cur.fetchone()
 
     backends_total = r['nb']
 
-    cur.execute("SELECT backend, COUNT(backend) AS nb FROM backends WHERE backend IS NOT NULL GROUP BY backend;")
+    cur.execute(QUERY)
 
     r = cur.fetchall()
 
@@ -32,12 +42,12 @@ if __name__ == "__main__":
 
     cnx.close()
 
-    fig = plt.figure(num='Backends on PyPI', figsize=(12,8))
+    fig = plt.figure(num='Backends on PyPI', figsize=(12,8), dpi=600)
     ax = fig.add_subplot(1, 1, 1)
 
     bars = ax.bar(backends, backend_nb, color=['blue' if n > 500 else 'cyan' for n in backend_nb])
 
-    ax.set_title(f'{backends_total} backends declared in pyproject.toml on PyPI (2018-2023)')
+    ax.set_title(f'{backends_total} backends declared in pyproject.toml on PyPI (2018-2023), removing nb < 5, log scale')
     ax.set_xlabel("Backend")
     ax.set_ylabel("Times declared")
     
@@ -55,7 +65,7 @@ if __name__ == "__main__":
         ax.text(bar.get_x() + bar.get_width() / 2, bar.get_height() + 0.5, str(nb), ha='center', va='bottom')
 
     # Set logarithmic scale on y-axis
-    ax.set_yscale('log')
+    # ax.set_yscale('log')
 
     # Color x-axis labels based on the condition
     for label, n in zip(ax.get_xticklabels(), backend_nb):
@@ -63,8 +73,8 @@ if __name__ == "__main__":
             label.set_color('blue')
     
     # Adjust layout to prevent clipping of rotated labels
-    # plt.tight_layout()
+    plt.tight_layout()
 
     #plt.show()
-    plt.savefig("python-backends-2018-2023.png", dpi=600)
+    plt.savefig("python-backends-2018-2023.png")