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authorBohdan Shtepan <winsatana@ya.ru>2016-04-05 20:27:09 +0300
committerBohdan Shtepan <winsatana@ya.ru>2016-04-05 20:27:09 +0300
commit8abfffd183d34c6b76dd117351a879e8b093f8c1 (patch)
tree2ded23445aff1b22c53078e13efc7054ce8fddde /python.html.markdown
parentaad2d2b6f2e44f7647d0512dea263029c1d4d1fa (diff)
parent8ddf7b5178524ab84f9e59b3e9d48343805d8ca0 (diff)
Merge remote-tracking branch 'adambard/master'
Diffstat (limited to 'python.html.markdown')
-rw-r--r--python.html.markdown41
1 files changed, 25 insertions, 16 deletions
diff --git a/python.html.markdown b/python.html.markdown
index f8f712d3..28b0a7ae 100644
--- a/python.html.markdown
+++ b/python.html.markdown
@@ -8,20 +8,22 @@ contributors:
filename: learnpython.py
---
-Python was created by Guido Van Rossum in the early 90s. It is now one of the most popular
-languages in existence. I fell in love with Python for its syntactic clarity. It's basically
-executable pseudocode.
+Python was created by Guido Van Rossum in the early 90s. It is now one of the
+most popular languages in existence. I fell in love with Python for its
+syntactic clarity. It's basically executable pseudocode.
-Feedback would be highly appreciated! You can reach me at [@louiedinh](http://twitter.com/louiedinh) or louiedinh [at] [google's email service]
+Feedback would be highly appreciated! You can reach me at [@louiedinh](http://twitter.com/louiedinh)
+or louiedinh [at] [google's email service]
-Note: This article applies to Python 2.7 specifically, but should be applicable
-to Python 2.x. Python 2.7 is reaching end of life and will stop being maintained in 2020,
-it is though recommended to start learning Python with Python 3.
-For Python 3.x, take a look at the [Python 3 tutorial](http://learnxinyminutes.com/docs/python3/).
+Note: This article applies to Python 2.7 specifically, but should be applicable
+to Python 2.x. Python 2.7 is reaching end of life and will stop being
+maintained in 2020, it is though recommended to start learning Python with
+Python 3. For Python 3.x, take a look at the [Python 3 tutorial](http://learnxinyminutes.com/docs/python3/).
-It is also possible to write Python code which is compatible with Python 2.7 and 3.x at the same time,
-using Python [`__future__` imports](https://docs.python.org/2/library/__future__.html). `__future__` imports
-allow you to write Python 3 code that will run on Python 2, so check out the Python 3 tutorial.
+It is also possible to write Python code which is compatible with Python 2.7
+and 3.x at the same time, using Python [`__future__` imports](https://docs.python.org/2/library/__future__.html). `__future__` imports
+allow you to write Python 3 code that will run on Python 2, so check out the
+Python 3 tutorial.
```python
@@ -32,6 +34,7 @@ allow you to write Python 3 code that will run on Python 2, so check out the Pyt
as comments
"""
+
####################################################
## 1. Primitive Datatypes and Operators
####################################################
@@ -124,7 +127,7 @@ not False # => True
"This is a string"[0] # => 'T'
#String formatting with %
-#Even though the % string operator will be deprecated on Python 3.1 and removed
+#Even though the % string operator will be deprecated on Python 3.1 and removed
#later at some time, it may still be good to know how it works.
x = 'apple'
y = 'lemon'
@@ -188,6 +191,7 @@ some_other_var # Raises a name error
# Equivalent of C's '?:' ternary operator
"yahoo!" if 3 > 2 else 2 # => "yahoo!"
+
# Lists store sequences
li = []
# You can start with a prefilled list
@@ -441,6 +445,7 @@ with open("myfile.txt") as f:
for line in f:
print line
+
####################################################
## 4. Functions
####################################################
@@ -464,7 +469,6 @@ def varargs(*args):
varargs(1, 2, 3) # => (1, 2, 3)
-
# You can define functions that take a variable number of
# keyword args, as well, which will be interpreted as a dict by using **
def keyword_args(**kwargs):
@@ -657,6 +661,12 @@ math.sqrt == m.sqrt == sqrt # => True
import math
dir(math)
+# If you have a Python script named math.py in the same
+# folder as your current script, the file math.py will
+# be loaded instead of the built-in Python module.
+# This happens because the local folder has priority
+# over Python's built-in libraries.
+
####################################################
## 7. Advanced
@@ -692,7 +702,6 @@ for i in double_numbers(xrange_):
# message
from functools import wraps
-
def beg(target_function):
@wraps(target_function)
def wrapper(*args, **kwargs):
@@ -703,13 +712,11 @@ def beg(target_function):
return wrapper
-
@beg
def say(say_please=False):
msg = "Can you buy me a beer?"
return msg, say_please
-
print say() # Can you buy me a beer?
print say(say_please=True) # Can you buy me a beer? Please! I am poor :(
```
@@ -726,6 +733,8 @@ print say(say_please=True) # Can you buy me a beer? Please! I am poor :(
* [Python Module of the Week](http://pymotw.com/2/)
* [A Crash Course in Python for Scientists](http://nbviewer.ipython.org/5920182)
* [First Steps With Python](https://realpython.com/learn/python-first-steps/)
+* [LearnPython](http://www.learnpython.org/)
+* [Fullstack Python](https://www.fullstackpython.com/)
### Dead Tree