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Author SHA1 Message Date
ducoterra
e09bd887b5 fix imports 2020-11-29 18:52:23 -05:00
ducoterra
7358db6429 fix major variable issue 2020-11-29 16:36:27 -05:00
1 changed files with 8 additions and 12 deletions
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20
docs/day4.md
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@@ -129,14 +129,12 @@ Let's get started:
```python ```python
import requests import requests
import json
``` ```
3. Create the list_people function by adding the following: 3. Create the list_people function by adding the following:
```python hl_lines="5-7" ```python hl_lines="3-5"
import requests import requests
import json
def list_people(people): def list_people(people):
print(people) print(people)
@@ -346,8 +344,7 @@ Let's make that a reality by simulating a slow internet connection.
```python hl_lines="3 3" ```python hl_lines="3 3"
import requests import requests
import json from concurrent.futures import ThreadPoolExecutor
import concurrent.futures import ThreadPoolExecutor
``` ```
20. We need to modify our main program to call the update_people function in a different thread. To do this we need to keep track of a "future" object. 20. We need to modify our main program to call the update_people function in a different thread. To do this we need to keep track of a "future" object.
@@ -362,7 +359,7 @@ Let's make that a reality by simulating a slow internet connection.
while True: while True:
choice = input(f"Please choose an option [{', '.join(choices)}]: ") choice = input(f"Please choose an option [{', '.join(choices)}]: ")
if choice == "list": if choice == "list":
people = list_people(future, people) future, people = list_people(future, people)
elif choice == "update": elif choice == "update":
future = ThreadPoolExecutor().submit(update_people, people) future = ThreadPoolExecutor().submit(update_people, people)
elif choice == "clear": elif choice == "clear":
@@ -381,7 +378,7 @@ Let's make that a reality by simulating a slow internet connection.
people = future.result() people = future.result()
future = None future = None
print(people) print(people)
return people return (future, people)
``` ```
22. Save with ++ctrl+s++ 22. Save with ++ctrl+s++
@@ -389,7 +386,6 @@ Let's make that a reality by simulating a slow internet connection.
```python ```python
import requests import requests
import json
from concurrent.futures import ThreadPoolExecutor from concurrent.futures import ThreadPoolExecutor
def list_people(future, people): def list_people(future, people):
@@ -397,7 +393,7 @@ Let's make that a reality by simulating a slow internet connection.
people = future.result() people = future.result()
future = None future = None
print(people) print(people)
return people return (future, people)
def update_people(people): def update_people(people):
try: try:
@@ -419,7 +415,7 @@ Let's make that a reality by simulating a slow internet connection.
while True: while True:
choice = input(f"Please choose an option [{', '.join(choices)}]: ") choice = input(f"Please choose an option [{', '.join(choices)}]: ")
if choice == "list": if choice == "list":
people = list_people(future, people) future, people = list_people(future, people)
elif choice == "update": elif choice == "update":
future = ThreadPoolExecutor().submit(update_people, people) future = ThreadPoolExecutor().submit(update_people, people)
elif choice == "clear": elif choice == "clear":
@@ -430,8 +426,8 @@ Let's make that a reality by simulating a slow internet connection.
print("Invalid choice. Please try again.") print("Invalid choice. Please try again.")
``` ```
24. Run 24. Now run `python menu.py`
25. Now run `python menu.py` 25. Type `list` and press ++enter++. Notice how there's nothing in the list.
26. Type `update` and press ++enter++. Notice the menu returns instantly. 26. Type `update` and press ++enter++. Notice the menu returns instantly.
27. In a moment you'll see "successfully updated people" print. Type `list` and press ++enter++. 27. In a moment you'll see "successfully updated people" print. Type `list` and press ++enter++.
28. Type `clear` and press ++enter++ 28. Type `clear` and press ++enter++