Add files via upload

challenges139-145/challenge-143_.py

@@ -0,0 +1,15 @@
+import sqlite3
+
+with sqlite3.connect("BookInfo.db") as db:
+    cursor=db.cursor()
+
+selectionyear=int(input("Enter a year: "))
+print()
+
+cursor.execute("""SELECT Books.Title, Books.DatePublished, Books.Author 
+FROM Books WHERE DatePublished >? ORDER BY DatePublished""", [selectionyear])
+
+for x in cursor.fetchall():
+    print(x)
+
+db.close()

challenges139-145/challenge-144_.py

@@ -0,0 +1,23 @@
+import sqlite3
+
+file = open("Booklist.txt","w")
+
+with sqlite3.connect("BookInfo.db") as db:
+    cursor=db.cursor()
+
+cursor.execute("SELECT Name from Authors")
+for x in cursor.fetchall():
+    print(x)
+
+print()
+selectauthor=input("Enter an author's name: ")
+print()
+
+cursor.execute("SELECT * from Books WHERE Author=?", [selectauthor])
+for x in cursor.fetchall():
+    newrecord=str(x[0])+" - "+x[1]+" - "+x[2]+" - "+str(x[3])+"\n"
+    file.write(newrecord)
+
+file.close()
+
+db.close()

challenges139-145/challenge-145_.py

@@ -0,0 +1,46 @@
+import sqlite3
+from tkinter import *
+
+def addtolist():
+    newname=sname.get
+    newgrade=sgrade.get
+    cursor.execute("INSERT INTO Scores (name,score) VALUES (?,?)", (newname,newgrade))
+    db.commit()
+    sname.delete(0,END)
+    sgrade.delete(0,END)
+    sname.focus()
+
+def clearlist():
+    sname.delete(0,END)
+    sgrade.delete(0,END)
+    sname.focus()
+
+with sqlite3.connect("TestScore.db") as db:
+    cursor=db.cursor()
+
+cursor.execute("""CREATE TABLE IF NOT EXISTS Scores(
+    id integer RIMAY KEY, name text, score integer);""")
+
+window=Tk()
+window.title("TestScores")
+window.geometry("450x200")
+
+label1=Label(text="Enter student's name: ")
+label1.place(x=30, y=35)
+sname=Entry(text="")
+sname.place(x=150, y=35, width=200, height=25)
+sname.focus()
+
+label2=Label(text="Enter student's grade: ")
+label2.place(x=30, y=80)
+sgrade=Entry(text="")
+sgrade.place(x=150, y=80, width=200, height=25)
+sgrade.focus()
+
+addbtn=Button(text="Add", command=addtolist)
+addbtn.place(x=150, y=120, width=75, height=25)
+clearbtn=Button(text="Clear", command=clearlist)
+clearbtn.place(x=250, y=120, width=75, height=25)
+
+window.mainloop()
+db.close