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Return JSON response from Flask view
I have a function that analyzes a CSV file with Pandas and produces a dict with summary information. I want to return the results as a response from a Flask view. How do I return a JSON response?
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How would you make a comma-separated string from a list of strings?
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",".join(l) will not work for all cases. I'd suggest using the csv module with StringIO
import StringIO
import csv
l = ['list','of','["""crazy"quotes"and\'',123,'other things']
line = StringIO.StringIO()
writer = csv.writer(line)
writer.writerow(l)
csvcontent = line.getvalue()
# 'list...
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...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...oDB本身有一个mongoimport工具可供使用,不过它只接受json、csv等格式的源文件,不适合我的需求,所以我没用,而是用PHP写了一个脚本,平稳运行了一段时间后,我发现数据导入的速度下降了,同时PHP抛出异常:
cursor timed out (time...
How to print pandas DataFrame without index
... @Rockbar if you want to copy/export to excel you should be using df.to_csv anyway.
– U2EF1
Nov 18 '17 at 1:07
3
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Unicode and UTF-8 - C/C++ - 清泛网 - 专注C/C++及内核技术
...,Unicode的实现方式各不相同,Unicode的实现方式称为Unicode转换格式(Unicode Translation Format,简称为UTF)如UTF-16。
UTF-16采用双字节对UCS-2字符进行编码,由于UCS-2本身也是双字节编码,故一般UTF-16编码和UCS-2编码可等同对待,但由...
SQL中使用update inner join和delete inner join;Oracle delete join替代...
...才发现update和delete居然支持inner join的update方式,这个在表间关联来...Update
Update XXX set XXX where 这种写法大家肯定都知道,才发现update和delete居然支持inner join的update方式,这个在表间关联来做更新和删除操作非常有用.
例子:
Sq...
Discuz 证件类型下拉框不显示的解决方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...框不显示的解决方法在数据库里执行以下字段,注意你的表前缀是否一致。DELETE FROM pre_common_member_profile_setting where fieldid = 'idcar...在数据库里执行以下字段,注意你的表前缀是否一致。
DELETE FROM pre_common_member_profile_setting where ...
FAT文件系统原理PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
FAT文件系统原理PDFFAT 文件系统 原理此篇文档是详细介绍FAT文件系统格式的,对文件分配表、根目录都有详细的讲解。此篇文档是详细介绍FAT文件系统格式的,对文件分配表、根目录都有详细的讲解。 *970K
download file using an ajax request
...tion that does some error checking on a form submission and then creates a csv file. If the error check fails, it has to come back with why it failed. If it creates the CSV it is telling the parent that "go ahead and fetch the file". I do that by posting to the ajax file with the form variable then ...
