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ValueError: too many values to unpack tensorflow

使用tensorflow 的时候报错: result ,_= sess.run(ops)ValueError: too many values to unpack 其实是ops里面不止一个,返回解压成2个(result ,_) 失败!!!! 正确的是: result = sess.run(ops)…

SQLAlchemy 做migration的时候 ValueError: too many values to unpack

我在做数据库迁移的时候,使用sqlalchemy,出现一个问题 Traceback (most recent call last): File "/Volumes/Spano/Dropbox/Dropbox/eclipse-workspace/CAUDLE/src/caudle/caudle/db_migrate.py", line 11, in <module> script = api.make_update_script_for_model(SQLALCHEMY_DA…

ValueError: too many values to unpack (expected 2)

记录下总是码错的地方 for key,value in final_table:#final_table is a dict 然后报错 File "./count_co_Mty_read_nu.py", line 190, in count_haplotype_read_number for key,value in final_table: ValueError: too many values to unpack (expected 2) 字典是的迭代元素是字典的key值,多加了一…

BUG——Celery ValueError: not enough values to unpack

背景 最近因项目需要,学习任务队列Celery的用法,跟着官网写Demo,出现如题错误,最终在github的Issues里找到解决办法,记录如下. 场景还原 本地环境如下: Windows 7 Python 3.6.7 Celery 4.1.0 代码tasks.py: from celery import Celery app = Celery('tasks', broker='redis://:xxxx@xxx.xxx.xxx.xx:6379/0') @app.task def add(x,…

Celery 在Windows下启动worker时出现错误：ValueError: not enough values to unpack (expected 3, got 0)

在公司Linux环境下没有出现问题,在回到家后直接在Windows10下运行出现错误: ValueError: not enough values to unpack (expected 3, got 0) 可通过celery worker 的-P选项选择prefork的方式来解决: celery worker -P solo #但是只能单线程 或者 celery worker -P eventlet #需要额外安装eventlet 点击查看详情…

Python: ValueError: too many values to unpack

eg1: >>>a,b=(1,2,3) Traceback (most recent call last): File "<stdin>",line 1,in <module> ValueError: too many values to unpack (expected 2) 错误原因: 一个tuple值赋给一个tuple变量时,变量个数不够造成的 可以改成 a,b,c=(1,2,3)或者其他变量即可 eg2: >>>imp…

Opencv ValueError: not enough values to unpack (expected 3, got 2)解决办法

问题背景 有些人在用我去年的毕设运行时(感谢QAQ),报错 Opencv ValueError: not enough values to unpack (expected 3, got 2) 当时就觉得是某个库的版本不对.但一直没注意.现在统一说一下. 解决办法 https://stackoverflow.com/questions/54164630/want-to-find-contours-valueerror-not-enough-values-to-unpack-expected-3-…

Celery ValueError: not enough values to unpack (expected 3, got 0)的解决方案

Celery ValueError: not enough values to unpack (expected 3, got 0)的解决方案 背景 最近因项目需要,学习任务队列Celery的用法,跟着官网写Demo,出现如题错误,最终在github的Issues里找到解决办法,记录如下. 场景还原 本地环境如下: Windows 10 Python 3.5.2 Celery 4.1.0 我是跟着这个前人翻译的中文文档敲的Demo. 代码tasks.py: from celery import…

celery 启用worker ValueError: not enough values to unpack

[2018-01-12 19:08:15,545: INFO/MainProcess] Received task: tasks.add[5d387722-5389-441b-9b01-a619b93b4702][2018-01-12 19:08:15,550: ERROR/MainProcess] Task handler raised error: ValueError('not enough values to unpack (expected 3, got 0)',)Traceback…

ValueError: not enough values to unpack (expected 2, got 1)

在python中使用字符串分片时遇到这个问题 [ValueError: not enough values to unpack (expected 2, got 1)] -------------->>[  值错误:没有足够的值剖解(期望2,获得1)] [原码如下] ------------------------------------ f = open('E:\\PYTHON\\talking.txt',encoding = 'utf-8')boy = []girl = []count =…