Differences

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--- python [2019/07/31 16:00] – [Printing] rpjday
+++ python [2020/06/17 14:40] (current) – rpjday
@@ Line 6: / Line 6: @@
 ... coming ...
+===== Internal links =====
+  * [[Python_file_hierarchy]]
 ===== Packages =====
@@ Line 16: / Line 20: @@
 $
 </code>
+===== Online tutorial =====
+==== 3 ====
+  * string operations
+  * string slices
+==== 4 ====
+  * "else" clause on loop constructs
+  * range() function is an "iterable"
+  * keyword arguments
+  * lambda expressions
+  * docstrings
+  * function annotation(???)
+==== 5 Data structures ====
+  * lists
+  * "import collections" (deque)
+  * list comprehensions
+  * set
+  * dictionary
+    * key can be any immutable type
+    * "list(d)" returns list of keys
+  * "enumerate()" routine for any sequence
+  * "zip()" to iterate over two sequences simultaneously
+===== TOPICS =====
+  * string method join()
+  * data types, numbers, literals
+  * "_" as last value interactively
+  * single and double quoted strings identical effectively
+  * raw strings
+  * "iterable" objects ("for" is an "iterator")
+    * list(range(1,10))
+    * tuple(range(1,10))
+  * loops and trailing "else" construct
 ===== STUFF =====
   * ''%%>>> quit()%%''
+  * PEP-8
+  * function annotations
 ===== Basics =====
+==== Arguments ====
+<code>
+import sys
+print(sys.argv[0])
+</code>
 ==== Printing ====
@@ Line 37: / Line 90: @@
 >>> print(end1 + end2 + end3 + end4 + end5 + end6, end=' ')
 >>> print(end7 + end8 + end9 + end10 + end11 + end12)
+>>> formatter = "{} {} {} {}"
+>>> print(formatter.format(1, 2, 3, 4))
+>>> print(formatter.format("one", "two", "three", "four"))
 </code>
+==== Strings ====
+Raw strings: r"blah blah"
+<code>
+print("""\
+Usage: thingy [OPTIONS]
+     -h                        Display this usage message
+     -H hostname               Hostname to connect to
+""")
+</code>