Plot a CSV

import io
df = pd.read_csv(io.StringIO("""city,units
Nairobi,21
Mombasa,15
Kisumu,15
"""))
df.plot(x="city", y="units", kind="bar")
plt.title("CSV string")
plt.show()

df = pd.DataFrame({
    "city": ["Nairobi", "Mombasa", "Kisumu", "Nakuru", "Eldoret"],
    "units": [21, 15, 15, 18, 12],
    "shillings": [2100, 1500, 1480, 1750, 1190],
})
print(df)
df.plot(x="city", y="units", kind="barh")
plt.show()

print("Or Add files → kiosk.csv, then pd.read_csv('kiosk.csv').")

df = pd.DataFrame({
    "month": ["Jan", "Feb", "Mar", "Apr"] * 2,
    "mm": [48, 55, 92, 150, 22, 18, 40, 80],
    "city": ["Nairobi"] * 4 + ["Mombasa"] * 4,
})
df.pivot(index="month", columns="city", values="mm").plot(marker="o")
plt.show()