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More documentation. A blog article!

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Josh Mudge 5 years ago
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8bd574b39c
  1. 74
      Blog/Mysql-reset-password.md
  2. 61
      Codecademy.md
  3. 0
      Codecadmey Projects/ex7_ch3,L1?.py
  4. 9
      Codecadmey Projects/gradebook-ch4.py
  5. 0
      Codecadmey Projects/lens-pizza-ch4.py
  6. 11
      ex11.py
  7. 4
      infinite.py

74
Blog/Mysql-reset-password.md

@ -0,0 +1,74 @@
# Set/Reset MySQL Root Password on MySQL 14.14
I was trying to setup MySQL that I installed using `sudo apt install MySql` and couldn't remember how to set the root password. I found many different instructions on how to stop MySQL, boot into safe mode and reset the root password.
*None of them worked.*
This did:
Run: `sudo mysql_secure_installation`
You will see something like this:
```
Securing the MySQL server deployment.
Enter password for user root:
```
You can setup a password strength validation plugin if you wish in the next step:
```
VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?
Press y|Y for Yes, any other key for No:
```
Next, it will give you an option to disable anonymous users. Do it. It is a security liability if you don't.
```
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.
Remove anonymous users? (Press y|Y for Yes, any other key for No) :
```
Remote root login to MySQL is generally not a good thing. I recommend disabling it:
```
Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.
Disallow root login remotely? (Press y|Y for Yes, any other key for No) :
```
Delete the test database to reduce the attack surface for hackers:
```
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.
Remove test database and access to it? (Press y|Y for Yes, any other key for No) :
```
Reload privilege tables now, unless you need MySQL working for this precise instant. It only takes a second.
```
Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.
Reload privilege tables now? (Press y|Y for Yes, any other key for No) :
```
And you're done!

61
Codecademy.md

@ -286,7 +286,7 @@ You can add lists like this: `['list1', 'stuff'] + ['list2', 'stuff']` but need
You can get a range of numbers using `range()`
It will give you all numbers under the number you input. For example, `range(8)` would give you 0-7, `range(1, 8)` would give you 1-7, and `range(1, 8, 2)` would give you 1,3,5,7 (2 is the interval) Use `print(list(var))` when printing.
It will give you all numbers under the number you input. For example, `range(8)` would give you 0-7, `range(1, 8)` would give you 1-7, and `range(1, 8, 2)` would give you 1,3,5,7 (2 is the interval and needs no padding) Use `print(list(var))` when printing.
## length
@ -417,6 +417,65 @@ to produce a new list with sorted contents without changing the original variabl
print("Nice little message to user.")
```
# Loops
The following assigns an arbitrary name to a temporary variable (tempvar) to the number of elements in `sport_games` For every element in `sport_games`, it will print `print(tempvar)`
```
for tempvar in sport_games:
print(tempvar)
```
You can use `range()` to get lists of arbitrary lengths.
You can also add lists like this:
```
students_period_A = ["Alex", "Briana", "Cheri", "Daniele"]
students_period_B = ["Dora", "Minerva", "Alexa", "Obie"]
for student in students_period_A:
students_period_B.append(student)
```
## Iterating until we find something
```
for thing in stuff:
if thing == thing_I_want:
print("Found it!")
break # Stops the loop, executes code outside.
```
## Skip a value in a list.
Ex.5
```
for age in ages:
if age < 21:
continue
else:
print(age)
```
## Move from list to list
Ex.7
```
while len(students_in_poetry) < 6:
student = all_students.pop(-1) # Remove last element
students_in_poetry.append(student) # Add it to students_in_poetry
print(students_in_poetry)
```
# Nested Loops
```
for location in sales_data:
print(location)
for sub in location:
scoops_sold += sub
```
# Fun Projects

0
Codecadmey Projects/ex7_ch5?.py → Codecadmey Projects/ex7_ch3,L1?.py

9
Codecadmey Projects/gradebook-ch4.py

@ -0,0 +1,9 @@
last_semester_gradebook = [("politics", 80), ("latin", 96), ("dance", 97), ("architecture", 65)]
subjects = ['physics', 'calculus', 'poetry', 'history']
grades = ['98', '97', '85', '88']
subjects.append('computer science')
grades.append('100')
gradebook = list(zip(subjects, grades))
gradebook.append(['visual arts', 93])
full_gradebook = gradebook + last_semester_gradebook
print(full_gradebook)

0
Codecadmey Projects/lens-pizza.py → Codecadmey Projects/lens-pizza-ch4.py

11
ex11.py

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#Write your function here
def every_three_nums(start):
if start > 100:
return []
everythree = range(start, 101, 3)
return list(everythree)
#Uncomment the line below when your function is done
print(every_three_nums(91))

4
infinite.py

@ -0,0 +1,4 @@
a = 1
while a == a:
print("hi")
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