How can you append to a local file using ClojureScript (running on Node)?
Use the Node.js fs.appendFileSync method from the fs package, like so:
(.appendFileSync fs "/path/to/file.txt" "string to append")
This will also create the file if it doesn't exist yet.
Related
I am learning about python and I want to open a html file inside a zip file. I'm reading tutorials and following documentation I found online for python 3.6 but I can't print the content of the news.html document which is inside the John.zip folder
import zipfile
file = zipfile.ZipFile("John.zip", "r")
with file('John.zip') as myzip:
with myzip.open("news.html") as myfile:
print(myfile.read())
When I start without debugging it shows "TypeError: 'ZipFile' object is not callable
But I can't fix this. I tried simpler things such as trying to open it the way you open a .txt file
file=open("John.zip/news.html")
print(file.read())
this didn't work either
What you are doing is storing a ZipFile as an object named it "file". Then, in the line beginning with "with", you're calling it as if it were a function. That is why you received the TypeError, because that object you named "file" is not a callable function.
Get rid of the line where you stored it as "file", and try something like this:
with zipfile.ZipFile('John.zip', 'r') as myzip:
Source:
Python Docs: https://docs.python.org/3/library/zipfile.html#zipfile-objects
I guess you have overridden the builtin function "file" by setting the global variable "file".
just print the file see whats in it.
TypeError: 'ZipFile' object is not callable
I had the similar problem, in my case i was working on google colab and i was getting this error but i updated the tensorflow version to v2.0.0 from v1.5.0 and it worked.
If the problem is not resoöved even after updatíng the tensorflow then try update to higher python version or lower python version sometimes, hope it would be solved.
I am writing some cljs.test tests for a clojurescript library and have some JSON test data I would like to load in.
I'm unsure what function I can use to load the data from files local to the project.
I'm using lein-doo as the test runner, initially with a nodejs configuration, ideally I would like to load files in an agnostic manner if possible, but I'd be fine with a nodejs-specific answer.
Following Piotrek's link I have come up with the following nodejs-only function that accomplishes this:
(defn node-slurp [path]
(let [fs (nodejs/require "fs")]
(.readFileSync fs path "utf8")))
(Node documentation: File System - readFileSync)
i am building an extension to parse json using vs code extension.
so my need is ,it should be able able to load .json file from a particular folder and iterate through content of the file.
Then it should allow user to select few keys from it make a new json file out of this and save it in any folder.
But i am not able to find any way to read and write files in "vs code extension".Could someone please help me.
If you want to read the current edit state of a file you can use the following API workspace function:
vscode.workspace.openTextDocument(uri).then((document) => {
let text = document.getText();
});
This will show you the current state of the file including unpersisted changes. document is of type TextDocument and has isDirty set to true if it has pending changes.
Since the extension runs in nodejs, you should be able to use any nodejs module built-in or installed by npm in the usual way.
For your purpose you will be OK with the built-in fs module: https://nodejs.org/dist/latest-v6.x/docs/api/fs.html
In your extension you will need to import the required module, so your code file should contain this:
let fs = require("fs");
and then use the methods in the usual way, eg. fs.fileReadSync( filename, encoding ) ...
Please not that there is one exception. If you install a nodejs module containing compiled, binary code, it will not run in the extension and instead you will see an error message saying something like %1 is not a valid Win32 application. Pure javascript modules are OK, though.
VSCode extensions are running in node.js. Therefore you can use any available node.js package/module within your extension. For instance, check out this question for reading JSON.
For JSON, you just need to require or import the JSON file, such as:
const jsonObject = require('./myJSONfile.json');
// do something
For JSON with comments, you can use node-jsonc-parser.
After the manipulation, you could use the fs module of nodej.js to write to the disk.
I'm currently developing a GUI using Python and Tkinter.
On of the task is to open and read some *.csv files.
I order to perform this task I have written the following code:
ReadData=pd.read_csv(ResultFile,skipinitialspace=True).values
While I'm running the code within the IDE Eclipse+Pydev everything work fine. But as soon as I run my code form a Dos window, i.e. python MainGrap.py, the code bugs stating that the file doesn't exists???????
I first load the path to a file via self.Inp_Filename=askopenfilename() then I create a list of the folders by means of the following function:
def PathDisintegrator(Inp_File):
Folders = os.path.split(Inp_File)
LastFolder = Folders[1]
RootPath = Folders[0]
Dirs=[]
while not(LastFolder==''):
Dirs.insert(0,LastFolder)
Folders = os.path.split(RootPath)
LastFolder = Folders[1]
RootPath = Folders[0]
Dirs.insert(0,RootPath[:-1])
Dirs=Dirs[:-1]
return(Dirs)
Then I can recreate the full path to file via the following function:
def PathAndFile(Folders,File):
FileOut=''
for item in Folders:
FileOut=FileOut+os.sep+item
#FileOut=FileOut+r"\\"+item
FileOut=FileOut[1:]+os.sep+File
return(FileOut)
I have printed out the file path even within the parser of Pandas and it looks fine to me: D:\Abaqus_Runs\DOWLEX_PET_LAMINATE_PROTO_REFERENCE_SI_Version_2_Revision_2_MDangle0_Rate0_01_MOVING_NODE_out.csv
The problem here is that your python environment in eclipse can see the folder where your csv resides but the terminal one does not.
You can observe what the system paths are by doing:
In [331]:
import sys
sys.path
Out[331]:
['',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\python34.zip',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\DLLs',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\lib',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\lib\\site-packages',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\lib\\site-packages\\win32',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\lib\\site-packages\\win32\\lib',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\lib\\site-packages\\Pythonwin',
'C:\\WinPython-64bit-3.4.2.4\\python-3.4.2.amd64\\lib\\site-packages\\IPython\\extensions']
So you need to provide a complete path or append the path to where the csv resides to your sys path. Note that backslashes must be escaped e.g. 'c:\\data\\my.csv' but if you use forward slashes then it works fine: e.g. 'c:/data/my.csv'
Trying CSV import to Neo4j - doesn't seem to be working.
I'm loading a local file using the syntax:
LOAD CSV WITH HEADERS FROM "file:///location/local/my.csv" AS csvDoc
Am wondering if there's something wrong with my CSV file, or if there's some syntax problem here.
If you didn't read the title, the error is:
Couldn't load the external resource at: file:/location/local/my.csv
[Neo.TransientError.Statement.ExternalResourceFailure]
Neo4j seems to need a full path spec to get a file on the local system.
On linux or mac try
LOAD CSV FROM "file:/Users/you/location/local/my.csv"
On windows try
LOAD CSV FROM "file://c:/location/local/my.csv"
.
In the browser interface (Neo4j 3.0.3, MacOS 10.11) it looks like Neo4j prefixes your file path with $path_to_graph_database/import. So you could move your files there. If you are using a command line tool, then see this SO question.
Easy solution:
Once you choose your database location (in my case ReactomeGraphDB60)...
here I placed my ddbb
...go to that folder, and create inside a folder called "import".
Later in the cypher query write (as an example):
LOAD CSV WITH HEADERS FROM "file:///ILClasiffStruct.csv" AS row
CREATE (n:Interleukines)
SET n = row