starboard-python

This package now lives in the `starboard-notebook` repository

Plugin that adds Python cell support to Starboard

License

MPL 2.0

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LaTeX support for SymPy outputs

One of the really nice things about SymPy in Jupyter is the repr of all SymPy objects can output nice looking math with LaTeX (via MathJax).

Test filesystem

Ideally we'd also have some test cases for the filesystem code.

For reference, here is mine

const backingStore = new Map<string, string | null>();
const fs: NotebookFilesystem = {
  async get({ path }) {
    const file = backingStore.get(path);
    if (file === undefined) {
      return { ok: false, status: 1, error: new Error("File not found " + path) };
    } else {
      return { ok: true, data: file };
    }
  },
  async put({ path, value }) {
    backingStore.set(path, value);
    return { ok: true, data: undefined };
  },
  async delete({ path }) {
    backingStore.delete(path);
    return { ok: true, data: undefined };
  },
  async move({ path, newPath }) {
    // TODO: Implement directory moving
    const getFileResult = await fs.get({ path });
    if (!getFileResult.ok) return getFileResult;
    const deleteFileResult = await fs.delete({ path });
    if (!deleteFileResult.ok) return deleteFileResult;
    const putFileResult = await fs.put({ path: newPath, value: getFileResult.data });
    if (!putFileResult.ok) return putFileResult;
    return { ok: true, data: undefined };
  },
  async listDirectory({ path }) {
    if (!path.endsWith("/")) path += "/";

    const filePaths = [...backingStore.keys()]
      .filter((k) => k.startsWith(path) && k !== path)
      .map((v) => v.slice(path.length).split("/")[0]);
    return { ok: true, data: [...new Set(filePaths)] };
  },
};
rt.internal.fs = fs;
(rt.internal.fs as any).backingStore = backingStore;

# %% [python]
import os
print(os.path.dirname(os.path.realpath('__file__')))


f = open("demofile.txt", "a")
f.write("File content 🍕!")
f.close()

#open and read the file after the appending:
f = open("demofile.txt", "r")
print(f.read())  # Should print out "File content 🍕!"

os.mkdir("cat")
f = open("./cat/demofile2.txt", "a")
f.write("Also a file")
f.close()

f = open("cat/demofile2.txt", "r")
print(f.read())  # Should print out "Also a file"

# %% [python]
f = open("cat/demofile4.txt", "r") # Should cause an error
print(f.read())

# %% [python]
import os

# Should print all files and directories
for currentpath, folders, files in os.walk('/mnt'):
    for folder in folders:
        print(os.path.join(currentpath, folder))
    for file in files:
        print(os.path.join(currentpath, file))

# %% [python]
import glob

# Should print all files and directories in /mnt/shared
for filename in glob.iglob('**/**', recursive=True):
     print(filename)

# %% [python]
import os
print(os.listdir(path='.')) # Should show ['demofile.txt', 'cat'] 
os.rename('demofile.txt', 'catapprovedfile.txt')
print(os.listdir(path='.')) # Should show ['cat', 'catapprovedfile.txt'] 
os.rename('catapprovedfile.txt', './cat/myfile.txt')
print(os.listdir(path='cat')) # Should show ['demofile2.txt', 'myfile.txt']