update site

.gitignore

@@ -6,4 +6,5 @@
 .fluent_python_notes.md
 .blocks1-4-notes.md
 .example
-.py1b2-full.md
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+.py1b2-full.md
+.vscode
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docs/py_1_1/04_strings_and_io.md

@@ -67,12 +67,15 @@ print(text[-11:])     # "Programming" same as text[7:]
 ```
 
 The slice notation works because strings implement the sequence protocol, which includes:
+
 - `__len__` - Returns length of sequence
 - `__getitem__` - Handles both index and slice access
 - `__iter__` - Makes the object iterable
 
 !!! Note "Slice Objects"
+
     Slices are actually objects in Python. When you use slice notation, Python creates a `slice` object:
+
     ```python
     # These are equivalent:
     text[1:5]
@@ -268,7 +271,9 @@ hash_value = hashlib.sha256(message).hexdigest()
 ```
 
 !!! Note "When to Use Bytes"
-    You'll work with bytes directly when:
+
+    **You'll work with bytes directly when:**
+
     - Reading/writing binary files (images, executables)
     - Implementing network protocols
     - Processing fixed-width data formats
@@ -277,7 +282,9 @@ hash_value = hashlib.sha256(message).hexdigest()
     - Interfacing with C libraries or system calls
 
 !!! Warning "Encoding Errors"
+
     When working with encodings, you might encounter errors. Python provides several error handlers:
+
     ```python
     # Different error handling strategies
     text = "Hello, 世界"
@@ -320,7 +327,8 @@ with open('output.txt', 'w') as f:
 ```
 
 !!! Note "`with`"
-    We'll cover the `with` statement in more detail in future lessons. For now, just know that it's a convience feature that ensures resources are released when they are no longer needed.
+
+    We'll cover the `with` statement in more detail in future lessons. For now, just know that it's a convenience feature that ensures resources are released when they are no longer needed.
 
 ### input()
 

temp.py

+# name = "Kevin"
+# print(id(name))
+# name = name.replace("v", "!")
+
+# print(name)
+# print(id(name))
+
+my_string = "Kevin"
+print(my_string)
+print(id(my_string))
+
+my_string = "Kevin" + "!"
+print(my_string)
+print(id(my_string))
+
+print()
+
+my_list = [1, 2, 3]
+print(my_list)
+print(id(my_list))
+
+my_list.append(4)
+print(my_list)
+print(id(my_list))
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