What is wrong with this extremely simple numpy script? [closed] - python

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I run the following in Python 2.7
import numpy
a = numpy.ndarray(shape=(2,2), dtype=float, order='F')
print numpy.mean(a)
numpy.savetext('foo.txt', a)
and get this result
[me#foo bar]$ python f.py
8.79658981512e-317
Traceback (most recent call last):
File "f.py", line 4, in <module>
numpy.savetext('foo.txt', a)
AttributeError: 'module' object has no attribute 'savetext'
What's wrong?

It's numpy.savetxt, without the e.

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Print String in Python [closed]

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Closed 3 months ago.
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I tried running this basic python script to print something, and it doesn't seem to be executing properly.
name = "Tyler";
print{name};
I am getting this error:
File "C:\Users\tyler\main.py", line 2
print{name};
^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
I tried changing line 2 to:
print(...)
but it prints out
Ellipsis, not my name.
You don't need semicolons in Python
The issue was the use of curly braces. Call your variable name with print() like this:
name = "Tyler"
print(name)

Python/JSON TypeError: list indices must be integers or slices, not str [closed]

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Closed 2 years ago.
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After fighting for hours, I need your help.
On a JSON response, I'd like to get ONE result from it.
Here how look the JSON file:
I want the result to be "Desnoss" only and only once.
data = json.loads(response)
print("%s" % (data["0"]["team"]["0"]["name"]))
Traceback (most recent call last):
File "c1.py", line 48, in <module>
print("%s" % (data["0"]["team"]["0"]["name"]))
TypeError: list indices must be integers or slices, not str
Thanks a lot
Pls. try following. 0 is the index and not "0"
print("%s" % (data[0]["team"][0]["name"]))

Error using struct.pack [closed]

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Closed 6 years ago.
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I am trying to create packed binary data, using struct.pack() in python3.x
It is giving me the below error, but I am unable to understand.
packed1 = struct.pack('>i4', 7, 8)
errorTraceback (most recent call last)
<ipython-input-823-a27a6bc07ff4> in <module>()
----> 1 packed1 = struct.pack('>i4', 7, 8)
error: repeat count given without format specifier
The repeat count should be before the i
struct.pack('>4i', 7, 8, 3, 2)
Also you need 4 parameters not only 2

What's the error mean for `$in` in Pymongo? [closed]

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for element in self.table1.find({'ji': {'$ne': ""}}):
gongLiNian = int(element['gongLiNian'])
gongLiNianScope = [str(gongLiNian-1), str(gongLiNian), str(gongLiNian+1)]
res = self.table2.find_one({'guanZhi' : element['guanZhi'],
'gongLiNian' : {'$in', gongLiNianScope},
'name' : element['name']})
For this code, here is the error:
Traceback (most recent call last):
File "C:\Users\elqstux\Desktop\study\History\oneJi.py", line 172, in <module>
oneJi.run()
File "C:\Users\elqstux\Desktop\study\History\oneJi.py", line 158, in run
res1 = self.step1()
File "C:\Users\elqstux\Desktop\study\History\oneJi.py", line 44, in step1
'gongLiNian' : {'$in', gongLiNianScope},
TypeError: unhashable type: 'list'
But i can't find any clue from the error.Could you give me some advise?
See the comma here:
{'$in', gongLiNianScope}
that is a syntax to initialize a set and you can put only hashable data types into a set.
Instead, you meant to have a dictionary:
{'$in': gongLiNianScope}

Error opening pages with python [closed]

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This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 8 years ago.
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I am trying to open websites in python. Lets cut to the chase.
import webbrowser
webbrowser.open('http://google.com')
(my code)
Traceback (most recent call last):
File "C:\Python27\webbrowser.py", line 1, in <module>
import webbrowser
File "C:\Python27\webbrowser.py", line 3, in <module>
webbrowser.open('http://google.com')
AttributeError: 'module' object has no attribute 'open'
PS C:\Users\ug>
(my error)
What did I do wrong?
import webbrowser
alink = 'http://eample.com'
new = 2
webbrowser.open(alink, new=new)
If this doesn't work, run this and post the output: dir(webbrowser)
webbrowser.py is the same name as the import module. Try renaming the file to wbrowser.py and see if this helps.
To summarize and clarify the comments:
Rename C:\Python27\webbrowser.py to webbrowser_test.py
Delete C:\Python27\webbrowser.pyc and C:\Python27\webbrowser.pyo
Run python webbrowser_test.py and you should get the desired results.

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