(base) bash-5.2$ date
Mon Sep 11 02:42:29 PM EDT 2023
(base) bash-5.2$ pwd
/home/accts/sbs5/cs200/www/lectures
(base) bash-5.2$ p
Python 3.11.4 (main, Jun  7 2023, 00:00:00) [GCC 12.3.1 20230508 (Red Hat 12.3.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> help(len)
Help on built-in function len in module builtins:

len(obj, /)
    Return the number of items in a container.

>>> len("hello")
5
>>> len([1,2,3])
3
>>> import collatz
>>> dir(collatz)
['__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', 'collatz', 'collatzg', 'cseries']
>>> dir(collatz.collatz)
['__annotations__', '__builtins__', '__call__', '__class__', '__closure__', '__code__', '__defaults__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__get__', '__getattribute__', '__getstate__', '__globals__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__kwdefaults__', '__le__', '__lt__', '__module__', '__name__', '__ne__', '__new__', '__qualname__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
>>> dir(collatz.collatz.__code__)
['__class__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getstate__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '_co_code_adaptive', '_varname_from_oparg', 'co_argcount', 'co_cellvars', 'co_code', 'co_consts', 'co_exceptiontable', 'co_filename', 'co_firstlineno', 'co_flags', 'co_freevars', 'co_kwonlyargcount', 'co_lines', 'co_linetable', 'co_lnotab', 'co_name', 'co_names', 'co_nlocals', 'co_positions', 'co_posonlyargcount', 'co_qualname', 'co_stacksize', 'co_varnames', 'replace']
>>> x = "Hello World!"
>>> x2 = 'Hello World!'
>>> x3 = '''
... Hello
... World!
... '''
>>> x
'Hello World!'
>>> x2
'Hello World!'
>>> x3
'\nHello\nWorld!\n'
>>> print(x3)

Hello
World!

>>> x4 = '"Hwllo World!"'
>>> x4
'"Hwllo World!"'
>>> x5 = 'I can\'t hear you.'
>>> x6
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'x6' is not defined. Did you mean: 'x'?
>>> x5
"I can't hear you."
>>> x6 = 'price\\earnings'
>>> x6
'price\\earnings'
>>> print (x6)
price\earnings
>>> tyoe(x)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'tyoe' is not defined. Did you mean: 'type'?
>>> type(x)
<class 'str'>
>>> str(123)
'123'
>>> len(x)
12
>>> x
'Hello World!'
>>> len(x2)
12
>>> len(x3)
14
>>> x3
'\nHello\nWorld!\n'
>>> len(x6)
14
>>> dir(str)
['__add__', '__class__', '__contains__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__getstate__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__mod__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmod__', '__rmul__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'capitalize', 'casefold', 'center', 'count', 'encode', 'endswith', 'expandtabs', 'find', 'format', 'format_map', 'index', 'isalnum', 'isalpha', 'isascii', 'isdecimal', 'isdigit', 'isidentifier', 'islower', 'isnumeric', 'isprintable', 'isspace', 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'maketrans', 'partition', 'removeprefix', 'removesuffix', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']
>>> x
'Hello World!'
>>> x.lower()
'hello world!'
>>> x
'Hello World!'
>>> x.upper()
'HELLO WORLD!'
>>> x
'Hello World!'
>>> y = x + '   '
>>> y
'Hello World!   '
>>> len(y)
15
>>> len(x)
12
>>> y.strip()
'Hello World!'
>>> y.strip()  C-c C-c
KeyboardInterrupt
>>> len(y.strip())
12
>>> y
'Hello World!   '
>>> x
'Hello World!'
>>> x.isapha()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'str' object has no attribute 'isapha'. Did you mean: 'isalpha'?
>>> x.isalpha()
False
>>> 'hello'.isalpha()
True
>>> 'hello'.isdigit()
False
>>> '1234'.isdigit()
True
>>> '  '.isspace()
  File "<stdin>", line 1
    '  '.isspace()
IndentationError: unexpected indent
>>>  '  '.isspace()
  File "<stdin>", line 1
    '  '.isspace()
IndentationError: unexpected indent
>>> '   '.isspace()
True
>>> ' \n\t'.isspace()
True
>>> ' \n\t\f'.isspace()
True
>>> x
'Hello World!'
>>> x.find('W')
6
>>> x
'Hello World!'
>>> x.find('q')
-1
>>> x
'Hello World!'
>>> x[6]
'W'
>>> x[-1]
'!'
>>> x[-3]
'l'
>>> len(x)
12
>>> x[12]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: string index out of range
>>> x[11]
'!'
>>> x[-10]
'l'
>>> x[-12]
'H'
>>> x[-13]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: string index out of range
>>> x
'Hello World!'
>>> x[0:3]
'Hel'
>>> x[0:]
'Hello World!'
>>> x[:]
'Hello World!'
>>> x[:5]
'Hello'
>>> x[:8.2]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: slice indices must be integers or None or have an __index__ method
>>> x[:8:2]
'HloW'
>>> x[:8:3]
'HlW'
>>> x[:8:-1]
'!dl'
>>> x
'Hello World!'
>>> x[::-1]
'!dlroW olleH'
>>> id(x)
139722965806320
>>> id(x2)
139722962874928
>>> id(x3)
139722965976240
>>> id(x)
139722965806320
>>> xc = x[:]
>>> xc
'Hello World!'
>>> id(xc)
139722965806320
>>> xc = xc + 'x'
>>> xc
'Hello World!x'
>>> x
'Hello World!'
>>> id(x)
139722965806320
>>> id(xc)
139722963999856
>>> xc = x
>>> xc
'Hello World!'
>>> id(xc)
139722965806320
>>> x == xc
True
>>> x is xc
True
>>> x
'Hello World!'
>>> x.replace('l','L')
'HeLLo WorLd!'
>>> x
'Hello World!'
>>> s = "the swift brown fox jumped over the lazy dog"
>>> s
'the swift brown fox jumped over the lazy dog'
>>> len(s)
44
>>> s.split()
['the', 'swift', 'brown', 'fox', 'jumped', 'over', 'the', 'lazy', 'dog']
>>> sl = s.split()
>>> sl
['the', 'swift', 'brown', 'fox', 'jumped', 'over', 'the', 'lazy', 'dog']
>>> '-'.join(sl)
'the-swift-brown-fox-jumped-over-the-lazy-dog'
>>> ' '.join(sl)
'the swift brown fox jumped over the lazy dog'
>>> sd = '-'.join(sl)
>>> sd
'the-swift-brown-fox-jumped-over-the-lazy-dog'
>>> sd.split()
['the-swift-brown-fox-jumped-over-the-lazy-dog']
>>> sd.split('-')
['the', 'swift', 'brown', 'fox', 'jumped', 'over', 'the', 'lazy', 'dog']
>>> odr('A")
  File "<stdin>", line 1
    odr('A")
        ^
SyntaxError: unterminated string literal (detected at line 1)
>>> ord('A")
  File "<stdin>", line 1
    ord('A")
        ^
SyntaxError: unterminated string literal (detected at line 1)
>>> ord('A')
65
>>> ord('a')
97
>>> char(97)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'char' is not defined. Did you mean: 'chr'?
>>> chr(97)
'a'
>>> 0xA
10
>>> oxB
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'oxB' is not defined
>>> 0xb
11
>>> 0xabc
2748
>>> 0x1a
26
>>> 0x100
256
>>> 0x10a
266
>>> 0x3b4
948
>>> chr(0x3b4)
'δ'
>>> chr(0x3b5)
'ε'
>>> chr(0x3b1)
'α'
>>> chr(0x3b2)
'β'
>>> chr(0x3b3)
'γ'
>>> l = [1,2,3,4,5]
>>> l
[1, 2, 3, 4, 5]
>>> len(l)
5
>>> l[3]
4
>>> l[-1]
5
>>> l[-3]
3
>>> l[:3]
[1, 2, 3]
>>> l[2:]
[3, 4, 5]
>>> l[:]
[1, 2, 3, 4, 5]
>>> l[::-1]
[5, 4, 3, 2, 1]
>>> x
'Hello World!'
>>> x[0] = 'x'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment
>>> l[0] = 88
>>> l
[88, 2, 3, 4, 5]
>>> for n in l:
...   print (n)
... 
88
2
3
4
5
>>> for x in l:
...   print (x , ' ', end='')
... 
88  2  3  4  5  >>> for x in l:
...   print (x, end='.')
... 
88.2.3.4.5.>>> sum = 0
>>> for x in l:
...   sum = sum + x
... 
>>> sum
102
>>> for x in l:
...   sum += x
... 
>>> sum
204
>>> l
[88, 2, 3, 4, 5]
>>> 4 in l
True
>>> 7 in l
False
>>> l
[88, 2, 3, 4, 5]
>>> rl = l[::-1]
>>> rl
[5, 4, 3, 2, 88]
>>> for i,v in enumerate(rl):
...   print (i, v)
... 
0 5
1 4
2 3
3 2
4 88
>>> a,b,c = 5,6,7
>>> a
5
>>> b
6
>>> c
7
>>> a,b = b,a
>>> a
6
>>> b
5
>>> 
(base) bash-5.2$ exit

Process shell finished