learned more about list and deleting element in the list

Author: DonCastillo

0033_deleting_list_element.py

@@ -1,5 +1,8 @@
-data= [4,5,104,105,110,120, 130, 130, 150, 160, 170, 183,185,187, 188, 191, 350, 360]
-
+# data= [4,5,104,105,110,120, 130, 130, 150, 160, 170, 183,185,187, 188, 191, 350, 360]
+# data= [4,5,104,105,110,120, 130, 130, 150, 160, 170, 183,185,187, 188, 191]
+# data= [104,105,110,120, 130, 130, 150, 160, 170, 183,185,187, 188, 191, 350, 360]
+# data= [104,105,110,120, 130, 130, 150, 160, 170, 183,185,187, 188, 191]
+data= []
 # del data[0:2]
 # print(data)
 

0034_iterating_backwards_and_deleting.py

@@ -0,0 +1,18 @@
+data = [104, 101, 4, 105, 308, 103, 5,
+        107, 100, 306, 106, 102, 108]
+
+min_valid = 100
+max_valid = 200
+
+# for index in range(len(data) - 1, -1, -1):
+#     if data[index] < min_valid or data[index] > max_valid:
+#         print(index)
+#         del data[index]
+
+top_index = len(data) - 1
+for index, value in enumerate(reversed(data)):
+    if value < min_valid or value > max_valid:
+        print(top_index - index,value)
+        del data[top_index - index]
+print(data)
+

0035_nested_lists.py

@@ -0,0 +1,33 @@
+empty_list = []
+even = [2, 4, 6, 8]
+odd = [1, 3, 5, 7, 9]
+
+numbers = [even, odd]
+print(numbers)
+
+for number_list in numbers:
+    print(number_list)
+    for value in number_list:
+        print(value)
+
+print()
+menu = [
+    ["egg", "bacon"],
+    ["egg", "sausage", "bacon"],
+    ["egg", "spam"],
+    ["egg", "bacon", "spam"],
+    ["egg", "bacon", "sausage", "spam"],
+    ["spam", "bacon", "sausage", "spam"],
+    ["spam", "sausage", "spam", "bacon", "spam", "tomato", "spam"],
+    # python ignores comma at the end of the last element of the list
+    ["spam", "egg", "spam", "spam", "bacon", "spam"],
+]
+
+for meal in menu:
+    if "spam" not in meal:
+        print(meal)
+        for item in meal:
+            print(item)
+
+    else:
+        print("{0} has a spam score of {1}".format(meal, meal.count("spam")))

0036_no_spam_challenge.py

@@ -0,0 +1,20 @@
+menu = [
+    ["egg", "bacon"],
+    ["egg", "sausage", "bacon"],
+    ["egg", "spam"],
+    ["egg", "bacon", "spam"],
+    ["egg", "bacon", "sausage", "spam"],
+    ["spam", "bacon", "sausage", "spam"],
+    ["spam", "sausage", "spam", "bacon", "spam", "tomato", "spam"],
+    ["spam", "egg", "spam", "spam", "bacon", "spam"],
+]
+
+# removes all the occurence of spam
+for meal in menu:
+    if meal.count("spam") > 1:
+        for index in range(len(meal) - 1, -1, -1):
+            if meal[index] == "spam":
+                del meal[index]
+    elif meal.count("spam") == 1:
+        meal.remove("spam")
+    print(meal)