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“Large data” work flows using pandas
...ation itself: "If you are looking to manage a terabyte or less of tabular CSV or JSON data, then you should forget both Spark and Dask and use Postgres or MongoDB."
– Michele Piccolini
Jul 30 at 15:51
...
Getting individual colors from a color map in matplotlib
...he solutions from Ffisegydd and amaliammr, here's an example where we make CSV representation for a custom colormap:
#! /usr/bin/env python3
import matplotlib
import numpy as np
vmin = 0.1
vmax = 1000
norm = matplotlib.colors.Normalize(np.log10(vmin), np.log10(vmax))
lognum = norm(np.log10([.5, ...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...+++++++++++++++++++++++++++++++++++++++++++
常见SOCKET错误返回码（转）
WSAEINTR (10004) 被中斷的系統呼叫
當以阻攔式進行的WinSock函式被WSACancelBlockingCall()中斷的時候，這個阻攔式函式會得到WSAEINTR這個錯誤訊息。 讀者要注意的是，當...
Python: fastest way to create a list of n lists
...et with say 50 rows and 20 columns. ie. Train[0] gives me the 1st row of a csv file, train[1] gives me the 2nd row and so on. I am interested in separating the dataset with 50 rows as one list, except the column 0 , which is my explained variable here, so must be removed from the orignal train datas...
Creating a simple XML file using python
...er file, however, also has the position number in the corresponding input (csv) file where the data will be taken from.
This way, if there's any changes to the position of the data coming in from the input file, the program doesn't change; it dynamically works out the data field position from the ap...
python requests file upload
... {'upload_file': open('file.txt','rb')}
values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}
r = requests.post(url, files=files, data=values)
and requests will send a multi-part form POST body with the upload_file field set to the contents of the file.txt file.
The filename will be include...
What is the best way to implement nested dictionaries?
...
@jason Depending on the data, I like to use JSON, csv files, or even a sqlite database to store it.
– nosklo
Feb 12 '19 at 6:37
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SQL Server insert if not exists best practice
...ck and easy as possible to truncate and reload it from an Excel sheet or a CSV file, or whatever form you have that data in.
That interface table should not be considered part of the normalized set of operational tables. Then you can join with CompetitionResults as suggested by Richard, to insert ...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...indows资源管理器，“查看”标签下的“大图标，小图标，列表，详细资料”
2. 设置listctrl 风格及扩展风格
LONG lStyle;
lStyle = GetWindowLong(m_list.m_hWnd, GWL_STYLE);//获取当前窗口style
lStyle &= ~LVS_TYPEMASK; //清除显示方...
How to send a “multipart/form-data” with requests in python?
...
url = 'https://<file_upload_url>'
fp = '/Users/jainik/Desktop/data.csv'
files = {'file': open(fp, 'rb')}
payload = {'file_id': '1234'}
response = requests.put(url, files=files, data=payload, verify=False)
Please note that you don't need to explicitly specify any content type.
NOTE: Want...