feat(task read all lines): added a new task

Author: sofiiako

File input output/Read all lines/__init__.py

@@ -0,0 +1,5 @@
+The plates will still shift
+and the clouds will still spew.
+The sun will slowly rise
+and the moon will follow too.
+(By Amy O. Connor)

File input output/Read all lines/input.txt

@@ -0,0 +1,17 @@
+type: edu
+files:
+- name: task.py
+  visible: true
+  placeholders:
+  - offset: 43
+    length: 31
+    placeholder_text: '# TODO: read all lines from input.txt into the list called
+      lines_list'
+- name: tests/test_task.py
+  visible: false
+- name: __init__.py
+  visible: false
+- name: tests/__init__.py
+  visible: false
+- name: input.txt
+  visible: true

File input output/Read all lines/task-info.yaml

@@ -0,0 +1,6 @@
+## Read all lines
+
+### Task
+Read all lines from the file input.txt into the list called `lines_list`. There are at least two different ways to do it.
+
+<div class="hint">Two possible solutions are discussed in the previous task.</div>

File input output/Read all lines/task.md

@@ -0,0 +1,5 @@
+with open("input.txt", "r") as infile:
+    lines_list = infile.readlines()
+
+if __name__ == "__main__":
+    print(lines_list)

File input output/Read all lines/task.py

@@ -0,0 +1,12 @@
+import contextlib
+import io
+import unittest
+
+from task import lines_list
+
+
+class TestCase(unittest.TestCase):
+    def test_out(self):
+        with open("input.txt", "r") as f:
+            expected_list = f.readlines()
+        self.assertEqual(expected_list, lines_list, msg="lines_list does not match the expected list.")

File input output/Read all lines/tests/__init__.py

@@ -2,5 +2,6 @@ custom_name: File input/output
 content:
 - Open file
 - Read file
+- Read all lines
 - Write to file
 - What next