python中//用法

时间: 2023-10-03 18:08:25 浏览: 44
在Python中,//是用来执行整数除法的操作符。它会将两个操作数相除,并返回结果的整数部分。也就是说,它会向下取整。例如,如果我们执行6 // 4,结果将是1,因为6除以4的整数部分是1。这与/操作符不同,/操作符执行的是普通的除法,返回结果的是一个浮点数。所以,执行6 / 4的结果是1.5。<span class="em">1</span><span class="em">2</span><span class="em">3</span> #### 引用[.reference_title] - *1* *2* [Python中关于反斜杠(\)用法的总结](https://blog.csdn.net/weixin_35385983/article/details/99757217)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"] - *3* [Python语言学习之特殊符号讲解:百分号%/点/双点/反斜杠(转义符)/单斜杠/双斜杠/用法(如去掉中括号)之详细...](https://blog.csdn.net/qq_41185868/article/details/98384651)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"] [ .reference_list ]

相关推荐

org.apache.spark.api.python.PythonException: Traceback (most recent call last): File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/python/lib/pyspark.zip/pyspark/worker.py", line 830, in main process() File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/python/lib/pyspark.zip/pyspark/worker.py", line 820, in process out_iter = func(split_index, iterator) File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/rdd.py", line 5405, in pipeline_func return func(split, prev_func(split, iterator)) File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/rdd.py", line 5405, in pipeline_func return func(split, prev_func(split, iterator)) File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/rdd.py", line 828, in func return f(iterator) File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/rdd.py", line 3964, in combineLocally merger.mergeValues(iterator) File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/python/lib/pyspark.zip/pyspark/shuffle.py", line 256, in mergeValues for k, v in iterator: File "/Users/zzs/PycharmProjects/pythonProject/venv/lib/python3.10/site-packages/pyspark/python/lib/pyspark.zip/pyspark/util.py", line 81, in wrapper return f(*args, **kwargs) File "/Users/zzs/PycharmProjects/pythonProject/pyspark项目练习/项目练习2.py", line 7, in <lambda> json_str_file = file_rdd.flatMap(lambda x: x.spilt("|")) AttributeError: 'str' object has no attribute 'spilt' at org.apache.spark.api.python.BasePythonRunner$ReaderIterator.handlePythonException(PythonRunner.scala:561) at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:767) at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:749) at org.apache.spark.api.python.BasePythonRun

Traceback (most recent call last): File "/usr/local/python3/bin/pyinstaller", line 8, in <module> sys.exit(_console_script_run()) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/__main__.py", line 194, in _console_script_run run() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/__main__.py", line 180, in run run_build(pyi_config, spec_file, **vars(args)) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/__main__.py", line 61, in run_build PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 1019, in main build(specfile, distpath, workpath, clean_build) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 944, in build exec(code, spec_namespace) File "/root/test/2.spec", line 20, in <module> noarchive=False, File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 429, in __init__ self.__postinit__() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/datastruct.py", line 184, in __postinit__ self.assemble() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 764, in assemble self._check_python_library(self.binaries) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 834, in _check_python_library python_lib = bindepend.get_python_library_path() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/depend/bindepend.py", line 1018, in get_python_library_path raise IOError(msg) OSError: Python library not found: libpython3.7mu.so.1.0, libpython3.7.so.1.0, libpython3.7m.so, libpython3.7.so, libpython3.7m.so.1.0 This means your Python installation does not come with proper shared library files. This usually happens due to missing development package, or unsuitable build parameters of the Python installation. * On Debian/Ubuntu, you need to install Python development packages: * apt-get install python3-dev * apt-get install python-dev * If you are building Python by yourself, rebuild with --enable-shared (or, --enable-framework on macOS).

Traceback (most recent call last): File "/usr/local/python3/lib/python3.9/site-packages/pymysql/connections.py", line 732, in _read_bytes data = self._rfile.read(num_bytes) File "/usr/local/python3/lib/python3.9/socket.py", line 704, in readinto return self._sock.recv_into(b) socket.timeout: timed out During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/datax-web/modules/datax-executor/bin/../data/applogs/executor/jobhandler/gluesource/833_1678761378000.py", line 36, in <module> db.execute("REPLACE INTO datax_customer_basc_detail_opt " File "/usr/local/python3/lib/python3.9/site-packages/pymysql/cursors.py", line 148, in execute result = self._query(query) File "/usr/local/python3/lib/python3.9/site-packages/pymysql/cursors.py", line 310, in _query conn.query(q) File "/usr/local/python3/lib/python3.9/site-packages/pymysql/connections.py", line 548, in query self._affected_rows = self._read_query_result(unbuffered=unbuffered) File "/usr/local/python3/lib/python3.9/site-packages/pymysql/connections.py", line 775, in _read_query_result result.read() File "/usr/local/python3/lib/python3.9/site-packages/pymysql/connections.py", line 1156, in read first_packet = self.connection._read_packet() File "/usr/local/python3/lib/python3.9/site-packages/pymysql/connections.py", line 692, in _read_packet packet_header = self._read_bytes(4) File "/usr/local/python3/lib/python3.9/site-packages/pymysql/connections.py", line 738, in _read_bytes raise err.OperationalError( pymysql.err.OperationalError: (2013, 'Lost connection to MySQL server during query (timed out)') During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/datax-web/modules/datax-executor/bin/../data/applogs/executor/jobhandler/gluesource/833_1678761378000.py", line 66, in <module> six.reraise(exc) TypeError: reraise() missing 1 required positional argument: 'value'

最新推荐

recommend-type

python中entry用法讲解

小编之前向大家讲解了很多关于字符串的知识,大家也都知道字符串在python中的作用很大,那你知道在python中用于接收字符串等输入,让用户可与之交互以输入或操作字符串数据的对象是什么吗?是 python tkinter中的...
recommend-type

详解Python中pyautogui库的最全使用方法

主要介绍了详解Python中pyautogui库的最全使用方法,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧
recommend-type

python中wx模块的具体使用方法

主要介绍了python中wx模块的具体使用方法,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧
recommend-type

详解Python中find()方法的使用

主要介绍了详解Python中find()方法的使用,是Python学习中的基础知识,需要的朋友可以参考下
recommend-type

在 Python 中使用 MQTT的方法

主要介绍了在 Python 中使用 MQTT的方法,帮助大家更好的理解和学习python,感兴趣的朋友可以了解下
recommend-type

zigbee-cluster-library-specification

最新的zigbee-cluster-library-specification说明文档。
recommend-type

管理建模和仿真的文件

管理Boualem Benatallah引用此版本:布阿利姆·贝纳塔拉。管理建模和仿真。约瑟夫-傅立叶大学-格勒诺布尔第一大学,1996年。法语。NNT:电话:00345357HAL ID:电话:00345357https://theses.hal.science/tel-003453572008年12月9日提交HAL是一个多学科的开放存取档案馆,用于存放和传播科学研究论文,无论它们是否被公开。论文可以来自法国或国外的教学和研究机构,也可以来自公共或私人研究中心。L’archive ouverte pluridisciplinaire
recommend-type

实现实时数据湖架构:Kafka与Hive集成

![实现实时数据湖架构:Kafka与Hive集成](https://img-blog.csdnimg.cn/img_convert/10eb2e6972b3b6086286fc64c0b3ee41.jpeg) # 1. 实时数据湖架构概述** 实时数据湖是一种现代数据管理架构,它允许企业以低延迟的方式收集、存储和处理大量数据。与传统数据仓库不同,实时数据湖不依赖于预先定义的模式,而是采用灵活的架构,可以处理各种数据类型和格式。这种架构为企业提供了以下优势: - **实时洞察:**实时数据湖允许企业访问最新的数据,从而做出更明智的决策。 - **数据民主化:**实时数据湖使各种利益相关者都可
recommend-type

2. 通过python绘制y=e-xsin(2πx)图像

可以使用matplotlib库来绘制这个函数的图像。以下是一段示例代码: ```python import numpy as np import matplotlib.pyplot as plt def func(x): return np.exp(-x) * np.sin(2 * np.pi * x) x = np.linspace(0, 5, 500) y = func(x) plt.plot(x, y) plt.xlabel('x') plt.ylabel('y') plt.title('y = e^{-x} sin(2πx)') plt.show() ``` 运行这段
recommend-type

JSBSim Reference Manual

JSBSim参考手册,其中包含JSBSim简介,JSBSim配置文件xml的编写语法,编程手册以及一些应用实例等。其中有部分内容还没有写完,估计有生之年很难看到完整版了,但是内容还是很有参考价值的。