Hana 9e216da9ef go.mod: add go.mod and move pygments to third_party
After go1.16, go will use module mode by default,
even when the repository is checked out under GOPATH
or in a one-off directory. Add go.mod, go.sum to keep
this repo buildable without opting out of the module
mode.

> go mod init github.com/mmcgrana/gobyexample
> go mod tidy
> go mod vendor

In module mode, the 'vendor' directory is special
and its contents will be actively maintained by the
go command. pygments aren't the dependency the go will
know about, so it will delete the contents from vendor
directory. Move it to `third_party` directory now.

And, vendor the blackfriday package.

Note: the tutorial contents are not affected by the
change in go1.16 because all the examples in this
tutorial ask users to run the go command with the
explicit list of files to be compiled (e.g.
`go run hello-world.go` or `go build command-line-arguments.go`).
When the source list is provided, the go command does
not have to compute the build list and whether it's
running in GOPATH mode or module mode becomes irrelevant.
2021-02-15 16:45:26 -05:00

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x = r"""
>>> import os
>>> print os
<module 'os' from '/file/path.py'>
>>> for x in range(10):
... y = x + 2
... print(x)
... if x > 5:
... raise Exception
...
0
1
2
3
4
5
6
Traceback (most recent call last):
File "<stdin>", line 5, in <module>
Exception
>>>
>>> while True:
... pass
...
^CTraceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyboardInterrupt
>>> class A(Exception):pass
...
>>> class B(Exception):pass
...
>>> try:
... try:
... raise A('first')
... finally:
... raise B('second')
... except A as c:
... print(c)
...
Traceback (most recent call last):
File "<stdin>", line 3, in <module>
__main__.A: first
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 5, in <module>
__main__.B: second
>>> x =
File "<stdin>", line 1
x =
^
SyntaxError: invalid syntax
>>>
>>> x = 3
>>> with 5 as y:
... print(x + y)
...
8
# TODO
#>>> raise ValueError('multi\n line\ndetail')
#Traceback (most recent call last):
#........
#ValueError: multi
# line
#detail
>>> raise ValueError('multi\n line\ndetail')
Traceback (most recent call last):
.123
ValueError: multi
line
detail
>>> raise ValueError('multi\n line\ndetail')
Traceback (most recent call last):
...
ValueError: multi
line
detail
>>> raise ValueError('multi\n line\ndetail')
Traceback (most recent call last):
....
ValueError: multi
line
detail
>>> raise ValueError('multi\n line\ndetail')
Traceback (most recent call last):
....
ValueError: multi
line
detail
>>> raise ValueError('multi\n line\ndetail')
Traceback (most recent call last):
...
ValueError: multi
line
detail
>>> raise Exception
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
Exception
>>> import somemodule
>>> somemodule.blah()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/path/to/stuff/somemodule/blah.py", line 658, in blah
raise Exception('Hi.')
Exception: Hi.