#!/usr/bin/env python3
"""
Hello Tutors,
I can't figure out why the FillWithStars() function puts Canopus in the db
twice.
What am I missing?
Thank you for any help.
Marilyn Davis
p.s. That Reset(db_name) is in there so that you can run it over and over
if you want.
---
"""
import os, sqlite3, subprocess
def Reset(db_name):
os.system("rm " + db_name)
db_process = subprocess.Popen(("sqlite3", db_name),
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
for send in (b'.tables', ):
returned = db_process.communicate(send)
assert returned == (b'', b'')
def FillWithStars():
with sqlite3.connect("stars.db") as connection:
connection.executescript("""
CREATE TABLE brightest(
name,
constellation,
apparent_magnitude,
absolute_magnitude,
distance);
INSERT INTO brightest VALUES("Canopus", "Carina", -0.72, -2.5,
74);
""")
connection.executemany("INSERT INTO brightest VALUES(?, ?, ?, ?, ?)",
[("Arcturus", "Bootes", -0.04, 0.2, 34),])
stored_stars = connection.execute("SELECT * FROM BRIGHTEST")
for star in stored_stars:
print(star)
def main():
Reset("stars.db")
FillWithStars()
if __name__ == '__main__':
main()
"""Output:
bash-3.2$ ./why3.py
('Canopus', 'Carina', -0.72, -2.5, 74)
('Canopus', 'Carina', -0.72, -2.5, 74)
('Arcturus', 'Bootes', -0.04, 0.2, 34)
bash-3.2$
"""
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