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User Help Web Apps

How find my tweets where an specific user retweeted it?

I want to know if a specific user ever retweeted any of my tweets. For example: "from:@username includes:nativeretweets filter:nativeretweets" The above command gets part of what I want, but I need the output to show only my tweets, I thought the command below might work but it does not return any results. "from:@username to:MyUserName include:nativeretweets […]

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Raspberry Pi User Help

.bashrc is executed once on boot and another time when terminal autostart via @lxterminal

I am using .bashrc to execute a python script on system boot: sudo -u pi python3 /path/to/script.py and then I add @lxterminal to file /etc/xdg/lxsession/LXDE-pi/autostart to make sure a terminal window is opened on launch. however, when I use ps aux to check all progresses, I found that there’s two script.py processes running in the […]

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Game Creation Mastering Development

Acceleration structure for AABBs with many overlaps

I have large number of AABB in 2D. They are created around complex polygons and I use them as pre-test before real point in polygon test (which is expensive). I was thinking of creating acceleration structure, since testing hunderds of AABB is not ideal even with a simple point-in-AABB test. What acceleration structure is considered […]

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Ask Chemistry

Why is vapor pressure constant at boiling point?

At non-boiling point, I understand that when you add heat, temperature increases and also the amount of gas increases, so by using $PV=nRT$ at constant volume, the increase in $n$ and $T$ would increase $P$. Thus, vapour pressure increases with temperature. However, at boiling point, if you add heat, temperature does not increase and the […]

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Cryptocurrency Ethereum Mastering Development

How do I fix this error message UnimplementedFeatureError: Nested dynamic arrays not implemented here

I am trying to create a function where if you call getDeployedCampaigns, it will output both the address and the string. Is there a way I can work around this issue so the error doesn’t occur? pragma solidity ^0.4.17; contract ContractFactory { address[] public deployedCampaigns; string[] public title; function getDeployedCampaigns() public view returns (address[], string[]) […]

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Cryptocurrency Ethereum Mastering Development

ReferenceError: balanceOf is not defined

When i try to test my contract using truffle i get this error My Token contract code JudeToken.sol is: pragma solidity >=0.4.2 <0.8.0; contract JudeToken { string public name = "JudeToken"; string public symbol = "JDT"; string public standard = "JDT Token v1.0"; uint256 public totalSupply; mapping(address => uint256) public balanceOf; constructor(uint256 _initialSupply) public { […]

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Linux Mastering Development

how come a virual address is only 48 bits rather than 64 bits?

I was reading a book which talks about virtual memory: Intel Core i7 supports a 48-bit (256 TB) virtual address space and a 52-bit (4 PB) physical address space below is my question Q1-since we mostly use 64 bits machine, how come the virual address is only 48 bits? shouldn’t it be 64 bits virual […]

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Linux Mastering Development

XKB Transparently map modifier level

I use a layout which is not QWERTY for first and second level. key <AC06> { type= "FOUR_LEVEL_ALPHABETIC", symbols[Group1]= [ m, M, Left, Home ] }; key <AB01> { type= "ALPHABETIC", symbols[Group1]= [ x, X ] }; I would like any key combination which has Ctrl in it (left Ctrl, or left and right ctrl) […]

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Mastering Development

A tough scraping case using selenium

So I am trying to scrape a webs table using selenium trying to extract the table with xpath: previously I tried to look for the table class however no tables where found , so I decided to look for the div element. xpath="//div[@class=’table-scroller ScrollableTable__table-scroller QuoteHistoryTable__table__scroller QuoteHistoryTable__QuoteHistoryTable__table__scroller’]" WebDriverWait(driver, 10).until( expected_conditions.visibility_of_element_located((By.XPATH, xpath))) source = driver.page_source driver.quit() soup […]

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User Help

Upgrading Ram in HP AU111TX [duplicate]

I want to upgrade RAM in my HP LAPTOP model number – AU111TX. Current Specification of RAM installed on my laptop is Can I add RAM in empty slot of different speed i.e. 2666MHz? How do I know that this RAM speed is compatible with my laptop? This is the RAM that I am planning […]