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fix(curriculum): acknowledge tracebacks in cipher project (#54724)

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Co-authored-by: Dario-DC <105294544+Dario-DC@users.noreply.github.com>
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2024-05-14 14:35:22 +02:00
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co-authored by Dario-DC
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commit 68188f1b28
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curriculum/challenges/_meta/learn-string-manipulation-by-building-a-cipher/meta.json
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@@ -107,292 +107,284 @@
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"helpCategory": "Python"
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65521203d7165c7b84b22ad4.md
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Below the line where you declared `alphabet`, write a `for` loop to iterate over `text`. Use `i` as the loop variable.
Doing so, there is an error in the terminal. You will learn about it in the next step.
# --hints--
You should use the `for` keyword to create a loop. Make sure to place the `for` keyword at the beginning of the line and leave a white space after the keyword.
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65521fc818947e800bffe48a.md
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---
id: 65521fc818947e800bffe48a
title: Step 28
title: Step 26
challengeType: 20
dashedName: step-28
dashedName: step-26
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/655220953ba90d80514d7ee2.md
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---
id: 655220953ba90d80514d7ee2
title: Step 29
title: Step 27
challengeType: 20
dashedName: step-29
dashedName: step-27
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65522255d5b9cd80f335c6f2.md
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---
id: 65522255d5b9cd80f335c6f2
title: Step 31
title: Step 29
challengeType: 20
dashedName: step-31
dashedName: step-29
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# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6552487e689f6e895f658717.md
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---
id: 6552487e689f6e895f658717
title: Step 35
title: Step 33
challengeType: 20
dashedName: step-35
dashedName: step-33
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65524b3aa6a1938a069a91ab.md
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---
id: 65524b3aa6a1938a069a91ab
title: Step 36
title: Step 34
challengeType: 20
dashedName: step-36
dashedName: step-34
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65524b790ba8558a2f1c9fe5.md
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---
id: 65524b790ba8558a2f1c9fe5
title: Step 37
title: Step 35
challengeType: 20
dashedName: step-37
dashedName: step-35
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65524d2a1a253b8bb5197ae2.md
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---
id: 65524d2a1a253b8bb5197ae2
title: Step 30
title: Step 28
challengeType: 20
dashedName: step-30
dashedName: step-28
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# --description--
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---
id: 655251308f31958d06cdf267
title: Step 38
title: Step 36
challengeType: 20
dashedName: step-38
dashedName: step-36
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# --description--
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---
id: 65525e359ca28d938baa82c5
title: Step 41
title: Step 39
challengeType: 20
dashedName: step-41
dashedName: step-39
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# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/655261b2e1f2c197093f3993.md
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---
id: 655261b2e1f2c197093f3993
title: Step 43
title: Step 41
challengeType: 20
dashedName: step-43
dashedName: step-41
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# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553980e0527fa115c705646.md
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---
id: 6553980e0527fa115c705646
title: Step 44
title: Step 42
challengeType: 20
dashedName: step-44
dashedName: step-42
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# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553995f412dd8122ed38e4a.md
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---
id: 6553995f412dd8122ed38e4a
title: Step 45
title: Step 43
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dashedName: step-45
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# --description--
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---
id: 6553a44b1801991847d8cc69
title: Step 49
title: Step 47
challengeType: 20
dashedName: step-49
dashedName: step-47
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553a572f7a65718f1e42e18.md
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---
id: 6553a572f7a65718f1e42e18
title: Step 51
title: Step 49
challengeType: 20
dashedName: step-51
dashedName: step-49
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# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553a755879b131a445e664c.md
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---
id: 6553a755879b131a445e664c
title: Step 46
title: Step 44
challengeType: 20
dashedName: step-46
dashedName: step-44
---
# --description--
Try to assign the string `'Hello Zaira'` to your `text` variable and see what happens in the console.
Try to assign the string `'Hello Zaira'` to your `text` variable and see what happens in the terminal.
You'll see a `string index out of range` exception. Don't worry, you'll figure out how to fix it soon!
# --hints--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553a7d8d05cbb1ae335a665.md
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---
id: 6553a7d8d05cbb1ae335a665
title: Step 47
title: Step 45
challengeType: 20
dashedName: step-47
dashedName: step-45
---
# --description--
When the loop reaches the letter `Z`, the sum `index + shift` exceeds the length of the string `alphabet`.
When the loop reaches the letter `Z`, the sum `index + shift` exceeds the last index of the string `alphabet`. Therefore, `alphabet[new_index]` is trying to use an invalid index, which causes an `IndexError` to be thrown.
You can notice that the output in the terminal stops at the space immediately before the `Z`, the last `print` before the error is thrown.
In this case, the modulo operator (`%`) can be used to return the remainder of the division between two numbers. For example: `5 % 2` is equal to `1`, because 5 divided by 2 has a quotient of 2 and a remainder of 1.
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553ed69ece88d29594748aa.md
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---
id: 6553ed69ece88d29594748aa
title: Step 52
title: Step 50
challengeType: 20
dashedName: step-52
dashedName: step-50
---
# --description--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553efd6ada3f42aa2d75448.md
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---
id: 6553efd6ada3f42aa2d75448
title: Step 53
title: Step 51
challengeType: 20
dashedName: step-53
dashedName: step-51
---
# --description--
@@ -16,10 +16,20 @@ def function_name(param_1, param_2):
Parameters are variables that you can use inside your function. A function can be declared with different number of parameters. In the example above, `param_1` and `param_2` are parameters.
Modify your function declaration so that it takes two parameters called `message` and `offset`.
Modify your function declaration so that it takes two parameters called message and offset.
After that, you'll see an error appear in the terminal. As a temporary fix, comment out the `caesar()` call.
# --hints--
You should comment out the `caesar()` function call.
```js
({test: () => assert(runPython(
`not _Node(_code).find_calls('caesar')`
))})
```
Your `caesar` function should take `message` and `offset` as the parameters. Remember to separate the parameters with a comma.
```js
@@ -35,7 +45,6 @@ text = 'Hello Zaira'
shift = 3
--fcc-editable-region--
def caesar():
--fcc-editable-region--
alphabet = 'abcdefghijklmnopqrstuvwxyz'
encrypted_text = ''
@@ -50,4 +59,5 @@ def caesar():
print('encrypted text:', encrypted_text)
caesar()
--fcc-editable-region--
```
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553f3fc92741c2bf8ded140.md
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---
id: 6553f3fc92741c2bf8ded140
title: Step 54
title: Step 52
challengeType: 20
dashedName: step-54
dashedName: step-52
---
# --description--
@@ -46,6 +46,6 @@ def caesar(message, offset):
print('plain text:', text)
print('encrypted text:', encrypted_text)
caesar()
#caesar()
--fcc-editable-region--
```
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553f4f66099802c6ae94613.md
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---
id: 6553f4f66099802c6ae94613
title: Step 55
title: Step 53
challengeType: 20
dashedName: step-55
dashedName: step-53
---
# --description--
Right now, your code can't execute because the `caesar` function is defined with two parameters (`message` and `offset`) but it is called without *arguments*.
Now, uncomment your `caesar()` call. You'll see that your code raises a `TypeError`, because the `caesar` function is defined with two parameters (`message` and `offset`), therefore it expects to be called with two *arguments*.
Calling `caesar()` without the required arguments stops the execution of the code.
Give `message` and `offset` values, by passing `text` and `shift` as arguments to the `caesar` function call.
@@ -16,13 +18,11 @@ Give `message` and `offset` values, by passing `text` and `shift` as arguments t
You should pass `text` and `shift` as the arguments to your function call by including them inside the parentheses. Don't forget to separate the arguments with a comma.
```js
assert.match(code, /^caesar\s*\(\s*text\s*,\s*shift\s*\)/m)
```
Your code contains invalid syntax and/or invalid indentation.
```js
({test: () => assert(true) })
({
test: () => assert(runPython(
`_Node(_code).find_calls('caesar')[0].is_equivalent('caesar(text, shift)')`
))
})
```
# --seed--
@@ -47,6 +47,6 @@ def caesar(message, offset):
print('plain text:', message)
print('encrypted text:', encrypted_text)
--fcc-editable-region--
caesar()
# caesar()
--fcc-editable-region--
```
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---
id: 6553f6086add4b2cbb99fd78
title: Step 56
title: Step 54
challengeType: 20
dashedName: step-56
dashedName: step-54
---
# --description--
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---
id: 6553f6b4ec51112d44d737c8
title: Step 50
title: Step 48
challengeType: 20
dashedName: step-50
dashedName: step-48
---
# --description--
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---
id: 6553f8c570f9982e013a8886
title: Step 57
title: Step 55
challengeType: 20
dashedName: step-57
dashedName: step-55
---
# --description--
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---
id: 655491bd5b98b813fa5bedca
title: Step 58
title: Step 56
challengeType: 20
dashedName: step-58
dashedName: step-56
---
# --description--
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---
id: 6554930320d70414e7b6acc6
title: Step 59
title: Step 57
challengeType: 20
dashedName: step-59
dashedName: step-57
---
# --description--
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---
id: 65549561463f0016876e852c
title: Step 60
title: Step 58
challengeType: 20
dashedName: step-60
dashedName: step-58
---
# --description--
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---
id: 65549f90cf78131c96ebcf28
title: Step 61
title: Step 59
challengeType: 20
dashedName: step-61
dashedName: step-59
---
# --description--
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---
id: 6554a334a40edb1fb4eff827
title: Step 62
title: Step 60
challengeType: 20
dashedName: step-62
dashedName: step-60
---
# --description--
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---
id: 6554a49a4f782f208abcc87e
title: Step 63
title: Step 61
challengeType: 20
dashedName: step-63
dashedName: step-61
---
# --description--
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---
id: 6554a57ec0a2c52106e7ee50
title: Step 64
title: Step 62
challengeType: 20
dashedName: step-64
dashedName: step-62
---
# --description--
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---
id: 6554a88d5af937226f4a9121
title: Step 65
title: Step 63
challengeType: 20
dashedName: step-65
dashedName: step-63
---
# --description--
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---
id: 6554ac937a49be2701af4f2f
title: Step 66
title: Step 64
challengeType: 20
dashedName: step-66
dashedName: step-64
---
# --description--
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---
id: 6554ad2463b8892748f8efdd
title: Step 67
title: Step 65
challengeType: 20
dashedName: step-67
dashedName: step-65
---
# --description--
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---
id: 6554d0332949b133a0b35eaa
title: Step 68
title: Step 66
challengeType: 20
dashedName: step-68
dashedName: step-66
---
# --description--
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---
id: 6554d15c8acb5f34499ad789
title: Step 69
title: Step 67
challengeType: 20
dashedName: step-69
dashedName: step-67
---
# --description--
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---
id: 6554d25dc5ceaa354307a77e
title: Step 70
title: Step 68
challengeType: 20
dashedName: step-70
dashedName: step-68
---
# --description--
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---
id: 6554de295ade563a069936a1
title: Step 71
title: Step 69
challengeType: 20
dashedName: step-71
dashedName: step-69
---
# --description--
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---
id: 6554dfce1683be3c0c9609a6
title: Step 72
title: Step 70
challengeType: 20
dashedName: step-72
dashedName: step-70
---
# --description--
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---
id: 6554e0adc7bb193cbfdb36d5
title: Step 73
title: Step 71
challengeType: 20
dashedName: step-73
dashedName: step-71
---
# --description--
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+2 -2
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---
id: 6554e2ee23bfd93f2c83640f
title: Step 74
title: Step 72
challengeType: 20
dashedName: step-74
dashedName: step-72
---
# --description--
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+2 -2
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---
id: 6554e343caea913ffba7bec6
title: Step 75
title: Step 73
challengeType: 20
dashedName: step-75
dashedName: step-73
---
# --description--
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---
id: 655516e410b8e30fb4fb64e8
title: Step 76
title: Step 74
challengeType: 20
dashedName: step-76
dashedName: step-74
---
# --description--
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+2 -2
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@@ -1,8 +1,8 @@
---
id: 65551a628bcb7e121e32d04b
title: Step 79
title: Step 77
challengeType: 20
dashedName: step-79
dashedName: step-77
---
# --description--
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---
id: 6555201d9b7fc917399f9f0b
title: Step 80
title: Step 78
challengeType: 20
dashedName: step-80
dashedName: step-78
---
# --description--
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+2 -2
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---
id: 655520c20cb1e6177b0641d6
title: Step 81
title: Step 79
challengeType: 20
dashedName: step-81
dashedName: step-79
---
# --description--
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---
id: 655522883e66f618e03a9411
title: Step 82
title: Step 80
challengeType: 20
dashedName: step-82
dashedName: step-80
---
# --description--
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---
id: 6555231eac4d9f19bd3d44b5
title: Step 83
title: Step 81
challengeType: 20
dashedName: step-83
dashedName: step-81
---
# --description--
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---
id: 65552a111190e11f0963949e
title: Step 84
title: Step 82
challengeType: 20
dashedName: step-84
dashedName: step-82
---
# --description--
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---
id: 65552a9593755e1fb2f5ab50
title: Step 85
title: Step 83
challengeType: 20
dashedName: step-85
dashedName: step-83
---
# --description--
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@@ -1,8 +1,8 @@
---
id: 65552b14e803731fe3c1e4ca
title: Step 86
title: Step 84
challengeType: 20
dashedName: step-86
dashedName: step-84
---
# --description--
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+2 -2
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---
id: 65553159615a8123b190ee43
title: Step 87
title: Step 85
challengeType: 20
dashedName: step-87
dashedName: step-85
---
# --description--
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---
id: 6555d6e12c95701172b55709
title: Step 77
title: Step 75
challengeType: 20
dashedName: step-77
dashedName: step-75
---
# --description--
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---
id: 6555d8b0b3d20b128bdadd37
title: Step 78
title: Step 76
challengeType: 20
dashedName: step-78
dashedName: step-76
---
# --description--
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---
id: 6555db4a7b788e15795674e5
title: Step 89
title: Step 87
challengeType: 20
dashedName: step-89
dashedName: step-87
---
# --description--
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---
id: 6555df0c81300b175308557d
title: Step 90
title: Step 88
challengeType: 20
dashedName: step-90
dashedName: step-88
---
# --description--
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---
id: 6555e1bfcd374e18c6be8e58
title: Step 91
title: Step 89
challengeType: 20
dashedName: step-91
dashedName: step-89
---
# --description--
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---
id: 6555e3f387381a19d5e00333
title: Step 92
title: Step 90
challengeType: 20
dashedName: step-92
dashedName: step-90
---
# --description--
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---
id: 6555e43e783ed31a0532b1b2
title: Step 93
title: Step 91
challengeType: 20
dashedName: step-93
dashedName: step-91
---
# --description--
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+2 -2
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---
id: 6555e547c18a2b1a7b795bd8
title: Step 95
title: Step 93
challengeType: 20
dashedName: step-95
dashedName: step-93
---
# --description--
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---
id: 6555e5991af57d1ae0e35f0a
title: Step 96
title: Step 94
challengeType: 20
dashedName: step-96
dashedName: step-94
---
# --description--
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---
id: 655619327c7b364166f8dd6f
title: Step 48
title: Step 46
challengeType: 20
dashedName: step-48
dashedName: step-46
---
# --description--
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@@ -1,8 +1,8 @@
---
id: 655a2a7210094920069b117c
title: Step 42
title: Step 40
challengeType: 20
dashedName: step-42
dashedName: step-40
---
# --description--
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+9
View File
@@ -14,6 +14,15 @@ for i in text:
print(i)
```
Python relies on indentation to indicate blocks of code. A colon at the end of a line is a signal that a new indented block of code will follow.
So, when no indented block is found after the final colon, the code execution stops and an `IndentationError` is thrown. This code will not show the output and instead raise an `IndentationError`:
```py
for i in text:
print(i)
```
Give your `for` loop a body by adding a call to `print(i)`. Remember to indent the loop body.
# --hints--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/656883980318048fb11a6e3b.md
-32
View File
@@ -1,32 +0,0 @@
---
id: 656883980318048fb11a6e3b
title: Step 25
challengeType: 20
dashedName: step-25
---
# --description--
Now, remove the indentation and see what happens to the output.
# --hints--
You should remove the indentation from the line where you call `print(i)`.
```js
assert.match(code, /^for\s+i\s+in\s+text:\s*^print\s*\(\s*i\s*\)/m)
```
# --seed--
## --seed-contents--
```py
text = 'Hello World'
shift = 3
alphabet = 'abcdefghijklmnopqrstuvwxyz'
--fcc-editable-region--
for i in text:
print(i)
--fcc-editable-region--
```
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/656884439d4d7d929d58669d.md
-43
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@@ -1,43 +0,0 @@
---
id: 656884439d4d7d929d58669d
title: Step 26
challengeType: 20
dashedName: step-26
---
# --description--
Python relies on indentation to indicate blocks of code. A colon at the end of a line is a signal that a new indented block of code will follow.
So, when no indented block is found after the final colon, the code execution stops and an `IndentationError` is thrown. Therefore, there's no output anymore.
Restore the indentation for your `print(i)` call.
# --hints--
You should indent `print(i)` inside your `for` loop body.
```js
const commentless_code = __helpers.python.removeComments(code);
assert.match(commentless_code, /^for\s+i\s+in\s+text:\s*^\s+print\s*\(\s*i\s*\)/m)
```
Your code contains invalid syntax and/or invalid indentation.
```js
({test: () => assert(true) })
```
# --seed--
## --seed-contents--
```py
text = 'Hello World'
shift = 3
alphabet = 'abcdefghijklmnopqrstuvwxyz'
--fcc-editable-region--
for i in text:
print(i)
--fcc-editable-region--
```
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@@ -1,8 +1,8 @@
---
id: 656886ec4e4d9b96ded3c565
title: Step 27
title: Step 25
challengeType: 20
dashedName: step-27
dashedName: step-25
---
# --description--
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@@ -1,8 +1,8 @@
---
id: 65688a50e6c998a21d8e41d3
title: Step 32
title: Step 30
challengeType: 20
dashedName: step-32
dashedName: step-30
---
# --description--
@@ -14,7 +14,7 @@ my_string = 'brain'
my_string[0] = 't'
```
Confirm that by using the bracket notation to access the first letter in `text` and try to change it into a character of your choice. You will see the ouput disappear.
Confirm that by using the bracket notation to access the first letter in `text` and try to change it into a character of your choice. You will see the ouput disappear and an error appear.
# --hints--
curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65688b5a1655a7a6caede847.md
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@@ -1,13 +1,15 @@
---
id: 65688b5a1655a7a6caede847
title: Step 33
title: Step 31
challengeType: 20
dashedName: step-33
dashedName: step-31
---
# --description--
If you try to change the individual characters of a string as you did in the previous step, you will get a `TypeError`. However, a variable can be reassigned another string:
When you try to change the individual characters of a string as you did in the previous step, you get a `TypeError`, which occurs when an object of inappropriate type is used in your code.
As you can see from the error message, strings do not support item assignment, because they are immutable. However, a variable can be reassigned another string:
```py
message = 'Hello World'
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@@ -1,8 +1,8 @@
---
id: 6568b7a40c7ba0ccbc4b4425
title: Step 34
title: Step 32
challengeType: 20
dashedName: step-34
dashedName: step-32
---
# --description--
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---
id: 6568c86dc9193000d11ca5e0
title: Step 40
title: Step 38
challengeType: 20
dashedName: step-40
dashedName: step-38
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